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* ChristianityIsCatholic: Set at a Catholic school run by nuns, so naturally NunsNRosaries abound.
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* SpiritualSuccessor: Very similar to the earlier Lifetime movie ''Film/DirtyTeacher'', from the same director, writer and production company.
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* FoolishSiblingResponsibleSibling: HormoneAddledTeenager Jason gets enticed into an obviously inappropriate relationship with a nun, while Zoe is horrified and tries to intervene.
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** An IronicName example is the villain taking on the identity of a woman named Sophia White. Sophia is Greek for "wisdom", and white is the color of purity and sanctity, and wisdom, purity and sanctity are three things she sorely lacks.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Creator/DevonWerkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason into a sexual relationship, frames his sister Zoe (Creator/RyanNewman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
to:
St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Creator/DevonWerkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when Then she seduces Jason into a sexual relationship, frames his sister Zoe (Creator/RyanNewman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school.school, and things spin way out of control. Zoe decides to start digging to find out the truth about Sister Sophia.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Creator/DevonWerkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason into a sexual relationship, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Creator/DevonWerkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason into a sexual relationship, frames his sister Zoe (Ryan Newman) (Creator/RyanNewman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
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''Bad Sister'' is a 2015 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.
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''Bad Sister'' is a 2015 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.Creator/DougCampbell.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason into a sexual relationship, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), (Creator/DevonWerkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason into a sexual relationship, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
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* ElaborateUniversityHigh: St. Adeline's has a bunch of detached buildings, a big chapel, and a Mission Revival-style portico.[[note]]The movie was filmed at a large Episcopal church complex[[/note]]
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* EvilIsHammy: Alyshia Ochse plays Sophia to the hilt, inclduing kissing the screen of a laptop as as she watches a video of Jason singing.
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* EvilIsHammy: Alyshia Ochse plays Sophia to the hilt, inclduing kissing the screen of a laptop as as she watches a video of Jason singing.
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** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia.[[note]]and in the film she was played by Hollywood NonSingingVoice queen Marni Nixon)[[/note]]
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** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia.[[note]]and [[note]]And in the film she was played by Hollywood NonSingingVoice queen Marni Nixon)[[/note]]Nixon[[/note]]
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** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia (and in the film she was played by Hollywood NonSingingVoice queen Marni Nixon).
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** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia (and Sophia.[[note]]and in the film she was played by Hollywood NonSingingVoice queen Marni Nixon).Nixon)[[/note]]
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* VillainProtagonist: The story revolves around dangerous psycho Sophia.
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* BrainyBrunette: Zoe, who's not only smart and a top student but is the [[OnlySaneMan Only Sane Girl]] in the story, catching onto something being wrong with Sister Sophia long before the others do.
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* MakeItLookLikeAnAccident: The DeadlyBath scene is staged to make it look like the victim slipped on some soap.
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* MakeItLookLikeAnAccident: The DeadlyBath scene murder is staged to make it look like the victim slipped on some soap.
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* DoesThisRemindYouOfAnything: At one point, Sophia angrily clutches her rosary, which leads the palm of her hand to start bleeding in a manner similar to [[https://en.wikipedia.org/wiki/Stigmata stigmata]].
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** And her misquote of the Lord's Prayer--"deliver us from the evil one--since she's the "evil one" that the other characters need to be delivered from in this story.
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** And her misquote of the Lord's Prayer--"deliver us from the evil one--since one"--since she's the "evil one" that the other characters need to be delivered from in this story.
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* SacrificialLamb: The real Sister Sophia, who only appears in one flashback scene where she gets whacked (in both senses of the term) by Laura Patterson.
* SacrificialLion: "Sophia" is caught off-guard [[spoiler:when Sara is allowed to return to school, so she murders Sara]].
* SacrificialLion: "Sophia" is caught off-guard [[spoiler:when Sara is allowed to return to school, so she murders Sara]].
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* {{Irony}}: The brand of lip gloss Sophia confiscates from Sara is called Toxic Tramp, which is a pretty good description of Sophia herself (and Sophia recognizes this enough to angrily destroy the bottle later).
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* {{Irony}}: {{Irony}}:
** The brand of lip gloss Sophia confiscates from Sara is called Toxic Tramp, which is a pretty good description of Sophia herself (and Sophia recognizes this enough to angrily destroy the bottlelater).later).
** And her misquote of the Lord's Prayer--"deliver us from the evil one--since she's the "evil one" that the other characters need to be delivered from in this story.
** The brand of lip gloss Sophia confiscates from Sara is called Toxic Tramp, which is a pretty good description of Sophia herself (and Sophia recognizes this enough to angrily destroy the bottle
** And her misquote of the Lord's Prayer--"deliver us from the evil one--since she's the "evil one" that the other characters need to be delivered from in this story.
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* ShoutOut: The DeadlyBath scene is a like a twofer Creator/AlfredHitchcock allusion, recalling both ''Film/{{Psycho}}'' and the NunsAreSpooky climax of ''Film/{{Vertigo}}''.
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* ShoutOut: ShoutOut:
** The DeadlyBath scene is a like a twofer Creator/AlfredHitchcock allusion, recalling both ''Film/{{Psycho}}'' and the NunsAreSpooky climax of''Film/{{Vertigo}}''.''Film/{{Vertigo}}''.
** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia (and in the film she was played by Hollywood NonSingingVoice queen Marni Nixon).
** The DeadlyBath scene is a like a twofer Creator/AlfredHitchcock allusion, recalling both ''Film/{{Psycho}}'' and the NunsAreSpooky climax of
** The name Sister Sophia might be a sly allusion to a much more wholesome portrayal of nuns, ''Theatre/TheSoundOfMusic'', where one of Maria's fellow nuns is named Sophia (and in the film she was played by Hollywood NonSingingVoice queen Marni Nixon).
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* PoliceAreUseless: Not shown on-screen, but apparently the cops bought the premise that [[spoiler:Sara died]] by slipping in the shower and hitting her head on the wall, despite her wounds being much more consistent with someone repeatedly bashing her head.
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* CatholicSchoolGirlsRule: The students at St. Adeline's wear uniforms, including the standard pleated skirts for girls, and resident school hottie Sara has set her sights on Jason.
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* CatholicSchoolGirlsRule: The students at St. Adeline's wear uniforms, including the standard pleated skirts for girls, and resident school hottie Sara has set her sights on Jason.fits this stereotype well.
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* BadLiar: Sister Sophia's undoing. She mixes up two Montana cities (Billings and Missoula), then insists they're right next to each other (they're actually a five hour drive from each other, which Zoe points out), then her stories about her aunt dying in a hospice, which she uses as an excuse to leave school, are discovered to be false by the school's head nun.
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* BadLiar: Sister Sophia's undoing. She mixes up two Montana cities (Billings and Missoula), then insists they're right next to each other (they're actually a five hour drive from each other, which Zoe points out), then her stories about her aunt dying in a hospice, which she uses as an excuse to leave school, are discovered to be false by the school's head nun. She's also woefully ignorant of church protocol, botching a line from the Lord's Prayer and not even knowing how to do the sign of the cross properly.
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* TheMuse: Sophia's plans for Jason are to run off with him to Paris where he can write songs about her.
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St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
to:
St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason, Jason into a sexual relationship, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
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* ReallyGetsAround: Sara has a reputation as the school slut.
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* MurderTheHypotenuse: Sophia gets rid [[spoiler:of Sara by murdering her while she takes a shower]].
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''Bad Sister'' is a 2016 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.
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''Bad Sister'' is a 2016 2015 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.
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[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/bad_sister.jpg]]
[[caption-width-right:300:[[Theatre/TheSoundOfMusic How do you solve a problem like Sophia?]]]]
''Bad Sister'' is a 2016 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.
St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
!!''Bad Sister'' contains examples of:
* AlwaysIdenticalTwins: Seemingly averted. It's never specifically stated that Jason and Zoe are fraternal twins, but since they're graduating together, it would seem to be the case.
* {{Backstory}}: Interestingly, we don't get much of one for Sophia[=/=]Laura, just some hints in her dialogue. Apparently she has a wealthy background, was TheUnfavourite in her family, and has led a very troubled life.
* BadHabits: From the beginning we're aware that Sophia isn't really a nun, but an imposter who's stolen the identity of the ''real'' Sister Sophia. A later flashback spells the situation out in more detail: [[spoiler:Laura Patterson actually went to Montana to kill Sophia so she could steal her identity]].
* BadLiar: Sister Sophia's undoing. She mixes up two Montana cities (Billings and Missoula), then insists they're right next to each other (they're actually a five hour drive from each other, which Zoe points out), then her stories about her aunt dying in a hospice, which she uses as an excuse to leave school, are discovered to be false by the school's head nun.
* CatholicSchoolGirlsRule: The students at St. Adeline's wear uniforms, including the standard pleated skirts for girls, and resident school hottie Sara has set her sights on Jason.
* ChristianityIsCatholic: Set at a Catholic school run by nuns, so naturally NunsNRosaries abound.
* {{Confessional}}: In the movie's signature scene, Jason goes to the chapel to confess to having sex with Sophia, but [[spoiler:Sophia is the one in the booth, and she initiates another round of sex with him ''in the confessional'']]!
* ContinuityNod: Whittendale College, the ultra-exclusive institution mentioned in a bunch of other Johnson Production Group movies made for Lifetime, is part of the story as the school Zoe is trying to get into.
* DeadPersonImpersonation: The real Sister Sophia White was murdered and Laura Patterson is impersonating her.
* DeadlyBath: While taking a shower, [[spoiler:Sara is startled by Sister Sophia, who murders her by bashing her head against the shower wall]].
* DoubleStandardRapeFemaleOnMale: A rare aversion of this. Sophia's two sexual encounters with Jason arguably constitute female-on-male rape, since she intrudes on him and acts as the aggressor. While he's depicted as having enjoyed it while still feeling hugely guilty about it, the situation traumatized him enough that he can't go through with it when Sara tries to initiate sex with him at the party.
* DramaticIrony: The characters don't know that Sophia isn't a real nun until the climax, but the audience is made aware of it from the start.
* EvilIsHammy: Alyshia Ochse plays Sophia to the hilt, inclduing kissing the screen of a laptop as as she watches a video of Jason singing.
* FaceOfAnAngelMindOfADemon: Sister Sophia, a pleasant-looking, serene blonde woman, is a cold-blooded killer and obsessive sexual deviant.
* FrameUp: Sophia sticks a marijuana joint in Sara's history textbook to get her suspended from school, plants a whiskey bottle in Jason's bed, which leads to his threatened expulsion until Sophia steps in to suggest that he spend a weekend at the school to make up for it (which will allow her to finally hook up with him), and sets up a BatmanGambit to catch Zoe looking at the answer sheet of an important test (by planting the sheet in a conspicuous location in the classroom).
* HollywoodNuns: The nuns at St. Adeline's wear their full habits.
* HypocriticalHumor: One darkly comic element is Sister Sophia sternly punishing Sara for her carnal interest in Jason, because, of course, Sophia secretly wants Jason for herself.
* {{Irony}}: The brand of lip gloss Sophia confiscates from Sara is called Toxic Tramp, which is a pretty good description of Sophia herself (and Sophia recognizes this enough to angrily destroy the bottle later).
* LingerieScene: Several for Sophia, including at the start where she unpacks the real Sister Sophia's very conservative undergarments, followed by her own hot red lingerie. She also strips from her habit to reveal the lingerie to seduce Jason.
* LoonyFan: Turns out that [[spoiler:psychotic Laura Patterson became obsessed with Jason's videos, and hatched a scheme to pose as a nun at his school, just so she could be close to him, going to the extent of traveling to Montana to murder the real Sister Sophia and take her identity upon seeing that St. Adeline's had hired her]].
* MakeItLookLikeAnAccident: The DeadlyBath scene is staged to make it look like the victim slipped on some soap.
* NaughtyNuns: Sophia is a beautiful young blonde who wears skimpy red lingerie under her habit, and has quite a sex drive. She manipulates Jason into becoming HotForPreacher, but she's really not a nun.
* NeverSuicide: Jason goes to his dorm room to find Sophia passed out on his bed with an empty bottle of sleeping pills on the nightstand. He attempts CPR on her, then she kisses him. She was just testing him to see if he'd really try to save her.
* NeverTrustATitle: The title makes you think it's going to be a movie about a woman dealing with an evil sibling, rather than about a depraved woman pretending to be a nun.
* PsychopathicWomanchild: Sophia is around 30 or so, but moons over Jason like a smitten schoolgirl and jealously regards the much younger Sara as a rival.
* RefugeInAudacity: Even as Lifetime movies go, this one is pretty extreme. To reiterate, it's about a psychotic woman who poses as a nun so she can pursue a teenage boy, [[spoiler:has sex with him in a confessional]], and the climax features two nuns getting in a fistfight!
* ShoutOut: The DeadlyBath scene is a like a twofer Creator/AlfredHitchcock allusion, recalling both ''Film/{{Psycho}}'' and the NunsAreSpooky climax of ''Film/{{Vertigo}}''.
* SpiritualSuccessor: Very similar to the earlier Lifetime movie ''Film/DirtyTeacher'', from the same director, writer and production company.
* SternNun: Sophia gets this repuation because of her hardass treatment of Sara, but she's actually targeting her to eliminate her as a rival for Jason's affections.
* TapOnTheHead: How the real Sophia was murdered, and also used at the climax on Sister Rebecca.
* WildTeenParty: Sara hosts one and tries to seduce Jason at it.
[[caption-width-right:300:[[Theatre/TheSoundOfMusic How do you solve a problem like Sophia?]]]]
''Bad Sister'' is a 2016 LifetimeMovieOfTheWeek written by Barbara Kymlicka (and seemingly adapted from some adolescent Catholic schoolboy's delirious sex fantasies) and directed by Doug Campbell.
St. Adeline's, a Catholic high school in Southern California, welcomes a new teacher, a nun from Montana named Sister Sophia White (Alyshia Ochse). The young, attractive nun makes a splash at the school because of her unconventional ways. She doesn't lead her homeroom class in the morning prayer, and she lavishes quite a bit of attention on Jason Brady (Devon Werkheiser), a student who's gained a following on the Web with his music. But no one at the school is aware that Sophia is an imposter. Things spin out of control when she seduces Jason, frames his sister Zoe (Ryan Newman) for cheating, and gets Sara (Sloane Avery), a classmate who's also pursuing Jason, suspended from school. Zoe decides to start digging to find out the truth about Sister Sophia.
!!''Bad Sister'' contains examples of:
* AlwaysIdenticalTwins: Seemingly averted. It's never specifically stated that Jason and Zoe are fraternal twins, but since they're graduating together, it would seem to be the case.
* {{Backstory}}: Interestingly, we don't get much of one for Sophia[=/=]Laura, just some hints in her dialogue. Apparently she has a wealthy background, was TheUnfavourite in her family, and has led a very troubled life.
* BadHabits: From the beginning we're aware that Sophia isn't really a nun, but an imposter who's stolen the identity of the ''real'' Sister Sophia. A later flashback spells the situation out in more detail: [[spoiler:Laura Patterson actually went to Montana to kill Sophia so she could steal her identity]].
* BadLiar: Sister Sophia's undoing. She mixes up two Montana cities (Billings and Missoula), then insists they're right next to each other (they're actually a five hour drive from each other, which Zoe points out), then her stories about her aunt dying in a hospice, which she uses as an excuse to leave school, are discovered to be false by the school's head nun.
* CatholicSchoolGirlsRule: The students at St. Adeline's wear uniforms, including the standard pleated skirts for girls, and resident school hottie Sara has set her sights on Jason.
* ChristianityIsCatholic: Set at a Catholic school run by nuns, so naturally NunsNRosaries abound.
* {{Confessional}}: In the movie's signature scene, Jason goes to the chapel to confess to having sex with Sophia, but [[spoiler:Sophia is the one in the booth, and she initiates another round of sex with him ''in the confessional'']]!
* ContinuityNod: Whittendale College, the ultra-exclusive institution mentioned in a bunch of other Johnson Production Group movies made for Lifetime, is part of the story as the school Zoe is trying to get into.
* DeadPersonImpersonation: The real Sister Sophia White was murdered and Laura Patterson is impersonating her.
* DeadlyBath: While taking a shower, [[spoiler:Sara is startled by Sister Sophia, who murders her by bashing her head against the shower wall]].
* DoubleStandardRapeFemaleOnMale: A rare aversion of this. Sophia's two sexual encounters with Jason arguably constitute female-on-male rape, since she intrudes on him and acts as the aggressor. While he's depicted as having enjoyed it while still feeling hugely guilty about it, the situation traumatized him enough that he can't go through with it when Sara tries to initiate sex with him at the party.
* DramaticIrony: The characters don't know that Sophia isn't a real nun until the climax, but the audience is made aware of it from the start.
* EvilIsHammy: Alyshia Ochse plays Sophia to the hilt, inclduing kissing the screen of a laptop as as she watches a video of Jason singing.
* FaceOfAnAngelMindOfADemon: Sister Sophia, a pleasant-looking, serene blonde woman, is a cold-blooded killer and obsessive sexual deviant.
* FrameUp: Sophia sticks a marijuana joint in Sara's history textbook to get her suspended from school, plants a whiskey bottle in Jason's bed, which leads to his threatened expulsion until Sophia steps in to suggest that he spend a weekend at the school to make up for it (which will allow her to finally hook up with him), and sets up a BatmanGambit to catch Zoe looking at the answer sheet of an important test (by planting the sheet in a conspicuous location in the classroom).
* HollywoodNuns: The nuns at St. Adeline's wear their full habits.
* HypocriticalHumor: One darkly comic element is Sister Sophia sternly punishing Sara for her carnal interest in Jason, because, of course, Sophia secretly wants Jason for herself.
* {{Irony}}: The brand of lip gloss Sophia confiscates from Sara is called Toxic Tramp, which is a pretty good description of Sophia herself (and Sophia recognizes this enough to angrily destroy the bottle later).
* LingerieScene: Several for Sophia, including at the start where she unpacks the real Sister Sophia's very conservative undergarments, followed by her own hot red lingerie. She also strips from her habit to reveal the lingerie to seduce Jason.
* LoonyFan: Turns out that [[spoiler:psychotic Laura Patterson became obsessed with Jason's videos, and hatched a scheme to pose as a nun at his school, just so she could be close to him, going to the extent of traveling to Montana to murder the real Sister Sophia and take her identity upon seeing that St. Adeline's had hired her]].
* MakeItLookLikeAnAccident: The DeadlyBath scene is staged to make it look like the victim slipped on some soap.
* NaughtyNuns: Sophia is a beautiful young blonde who wears skimpy red lingerie under her habit, and has quite a sex drive. She manipulates Jason into becoming HotForPreacher, but she's really not a nun.
* NeverSuicide: Jason goes to his dorm room to find Sophia passed out on his bed with an empty bottle of sleeping pills on the nightstand. He attempts CPR on her, then she kisses him. She was just testing him to see if he'd really try to save her.
* NeverTrustATitle: The title makes you think it's going to be a movie about a woman dealing with an evil sibling, rather than about a depraved woman pretending to be a nun.
* PsychopathicWomanchild: Sophia is around 30 or so, but moons over Jason like a smitten schoolgirl and jealously regards the much younger Sara as a rival.
* RefugeInAudacity: Even as Lifetime movies go, this one is pretty extreme. To reiterate, it's about a psychotic woman who poses as a nun so she can pursue a teenage boy, [[spoiler:has sex with him in a confessional]], and the climax features two nuns getting in a fistfight!
* ShoutOut: The DeadlyBath scene is a like a twofer Creator/AlfredHitchcock allusion, recalling both ''Film/{{Psycho}}'' and the NunsAreSpooky climax of ''Film/{{Vertigo}}''.
* SpiritualSuccessor: Very similar to the earlier Lifetime movie ''Film/DirtyTeacher'', from the same director, writer and production company.
* SternNun: Sophia gets this repuation because of her hardass treatment of Sara, but she's actually targeting her to eliminate her as a rival for Jason's affections.
* TapOnTheHead: How the real Sophia was murdered, and also used at the climax on Sister Rebecca.
* WildTeenParty: Sara hosts one and tries to seduce Jason at it.
