History YMMV / KnockKnock2015

* RetroactiveRecognition: This was one of the first starring roles for Creator/AnaDeArmas, who would become MUCH more famous by the end of the decade for her performances in ''Film/BladeRunner2049'' and ''Film/KnivesOut''.

* EvilIsSexy: Bel and Genesis.

** Bel. Is she an AxCrazy sadist like Genesis, or a damaged person going along with it? When she roleplayed as [[spoiler: a molested child]] was she trying to mess with Evan's head, or was she acting out a childhood trauma?

** In the alternate ending, is Evan [[spoiler: going to save the next victim and prove his innocence, or put a [[PayEvilUntoEvil more permanent ending]] to the girls' rampage?]] The answer may be subtly hinted at by the fact that Evan [[spoiler: ''[[ConspicuousGloves puts his gloves on]]'' before entering the house.]]

** [[spoiler: Bel and Genesis get away with ruining Evan's life... except they were sloppy enough to leave evidence all over the place that there had been a break-in, and Evan could easily say he'd been coerced into sex with them. ''But''... exactly how many girls out there are legally named "Bel" or "Genesis"? Most likely, they'd used aliases to cover their tracks. Although while the alternate ending shows that they've been wearing wigs, as they swapped them when they moved onto their newest victim, facial recognition technology could most likely sort everything out when the police inevitably get involved.]]
** When Bel raped Evan, she was also ''wearing his daughter’s elementary school uniform and role-playing ParentalIncest,'' which might mean that after Genesis posts the video of it to Evan’s Facebook, in addition to being framed as a willing adulterer in this instance, Evan may have also been MistakenForPedophile.

** Louis realizing that Bel and Genesis are torturing Evan and not falling for their wiles as easily as they'd hoped. [[spoiler: Too bad he gets killed anyway.]]
** [[spoiler: The alternate ending implies that Evan will get some sweet, sweet payback.]]

* TheWoobie: Louis, the art dealer who comes to collect Mrs. Webber's latest {{sculpture|s}} only to run afoul of the girls. [[spoiler: Once they realise he's not going to fall for their charms, they steal his inhaler and toss it back and forth while he chases after it, getting closer and closer to an asthmatic attack. He then slips and hits his head on a sculpture, snapping his neck. Bel and Genesis then dump his body.]]

* MemeticMutation: A buried Keanu Reeves looking at his phone and him responding with a SkywardScream is often used as a reaction to something awful.

* FanPreferredCutContent: The alternate ending is what many moviegoers consider the real ending.

* TheyWastedAPerfectlyGoodPlot: Most people prefer the alternative ending over the original ending as it would've made this movie one of the few where it was heavily implied that the DoubleStandardRapeFemaleOnMale wouldn't have ended with [[spoiler:the two women being {{Karma Houdini}}s]] which is something that has never been done in movies before.

---> IT WAS FREE FUCKING PIZZA!
** There's Evan's SkywardScream, which he delivers while gagged. Given that it's Keanu Reeves, you almost expect him to [[Film/PointBreak1991 fire a gun in the air]], except he's buried up to his neck.

** There are ''so many'' nude scenes and close-up shots of Bel and Genesis's breasts and butts that it becomes excessive and quickly feels less like the characters taunting Evan and more like the film is desperately trying to milk as much {{Fanservice}} from the actresses that they can, especially when compared to Evan's RightThroughHisPants treatment in the sex scenes.

* BestKnownForTheFanservice: Lorenza Izzo and Ana de Armas' breasts are ''very'' often mentioned in reviews.

* TheWoobie: Louis, the art dealer who comes to collect Mrs. Webber's latest sculpture only to run afoul of the girls. [[spoiler: Once they realise he's not going to fall for their charms, they steal his inhaler and toss it back and forth while he chases after it, getting closer and closer to an asthmatic attack. He then slips and hits his head on a sculpture, snapping his neck. Bel and Genesis then dump his body.]]

* {{Fanon}}: The alternate ending is what many moviegoers consider the real ending.

** [[spoiler: Bel and Genesis get away with ruining Evan's life...except they were sloppy enough to leave evidence all over the place that there had been a break-in, and Evan could easily say he'd been coerced into sex with them. ''But''...exactly how many girls out there are legally named "Bel" or "Genesis"? Most likely, they'd used aliases to cover their tracks. Although while the alternate ending shows that they've been wearing wigs, as they swapped them when they moved onto their newest victim, facial recognition technology could most likely sort everything out when the police inevitably get involved.]]

* TheyWastedAPerfectlyGoodPlot: Most people prefer the alternative ending over the original ending as it would've made this movie one of the few where it was heavily implied that the DoubleStandardRapeFemaleOnMale wouldn't have ended with [[spoiler: the two women being karma houdinis]] which is something that has never been done in movies before.

* {{Moe}}: Bel is a total cutie. She's still crazy, guys.

** Some of the movies' quotes are regarded as this, most notably "Chocolate with sprinkles" and Evan's TheReasonYouSuckSpeech to the girls.

** There are two laughably odd moments in the otherwise [[NightmareFuel horrific]] scene where Bel rapes Evan. First, Genesis calls out for Bel to do it “doggy style,” while Evan is tied to the bed and Bel is on top of him. Second, Bel responds to this by... ''barking and howling.'' Very realistically, with what is an obvious sound-effect. Apparently “doggy-style” means something entirely different to Genesis and Bel!
** There are ''so many'' nude scenes and close-up shots of Bel and Genesis’s breasts and butts that it becomes excessive and quickly feels less like the characters taunting Evan and more like the film is desperately trying to milk as much {{Fanservice}} from the actresses that they can, especially when compared to Evan’s RightThroughHisPants treatment in the sex scenes.

** There's Evan's SkywardScream, which he delivers while gagged. Given that it's Keanu Reeves, you almost expect him to fire a gun in the air, except he's buried up to his neck.

** Eli Roth's commentary on the alternate ending describes the girls as having "switched roles." However, Bel is still the one getting up close and intimate with the new victim, and Genesis is still the one standing back and talking, exactly the same dynamic they had with Evan.

* FanDisservice:
** The threesome scene is intended as sexy but given that Evan is cornered into it, it is not at all titillating.
** The latter scene of Bel dressed as a school girl is intended to be such given that Evan is unwilling tied to the bed, and Bel is in his daughter's clothes. But the scene plays out even more tastelessly that a shot of Ana de Armas naked butt and grinding on Keanu Reeves while playing ParentalIncest is FetishRetardant and borderline NauseaFuel.

** [[spoiler: Check out Evan in the alternate ending. His hair has grown back and his beard is longer. He's been tracking these girls for a while, but that would imply that he's suddenly got a lot of free time on his hands. Odds are his wife found out about the sex and kicked him out of the house, which will make his revenge even stronger.]]
** When Bel raped Evan, she was also ''wearing his daughter’s elementary school uniform and role playing ParentalIncest,'' which might mean that after Genesis posts the video of it to Evan’s Facebook, in addition to being framed as a willing adulterer in this instance, Evan may have also been MistakenForPedophile.

* MemeticMutation: A buried Keanu Reeves looking at his phone and him respondong with a SkywardScream is often used as a reaction to something awful.

** There are two laughably off moments in the otherwise [[NightmareFuel horrific]] scene where Bel rapes Evan. First, Genesis calls out for Bel to do it “doggy style,” while Evan is tied to the bed and Bel is on top of him. Second, Bel responds to this by... ''barking and howling.'' Very realistically, with what is an obvious sound-effect. Apparently “doggy-style” means something entirely different to Genesis and Bel!

** There are two laughably off moments in the otherwise [[NightmareFuel horrific]] scene where Bel rapes Evan. First, Genesis calls out for Bel to do it “doggy style,” while Evan is tied to the bed and Bel is on top of him. Second, Bel responds to this by... ''barking and howling.'' Very realistically, with what is an obvious sound-effect. [[YouKeepUsingThatWord Apparently “doggy-style” means something entirely different to Genesis and Bel!]]

** In the alternate ending, is Evan [[spoiler: going to save the next victim and prove his innocence, or put a [[PayEvilUntoEvil more permanent ending]] to the girls' rampage?]]

* BestKnownByTheFanservice: Lorenza Izzo' and Ana de Armas' breasts are ''very'' often mentioned in reviews.
* EvilIsSexy: Bel and Genesis

** [[spoiler: Check out Evan in the alternate ending. His hair has grown back and his beard is longer. He's been tracking these girls for awhile, but that would imply that he's suddenly got a lot of free time on his hands. Odds are his wife found out about the sex and kicked him out of the house, which will make his revenge even stronger.]]

* {{Moe}}: Bel is a total cutie. She's still psycho, guys.

** Louis realising that Bel and Genesis are torturing Evan and not falling for their wiles as easily as they'd hoped. [[spoiler: Too bad he gets killed anyway.]]

* NarmCharm: What ultimately draws audiences in. Creator/EliRoth, Keanu Reeves and a plot that combines ''Film/FatalAttraction'' with ''Film/FunnyGames'' ultimately forms a thriller that gets more laughs than gasps.
* ParanoiaFuel: Imagine leaving the house for the weekend, only to come home and find every square inch of it has been either vandalised or wrecked beyond repair.

* MagnificentBastard: Bel and Genesis, but especially Genesis. [[spoiler: Even after doing something as sloppy as posting a video of them having sex with Evan online and ultimately sparing him, which seems like a recipe to eventually getting caught. It turns out that they alter their appearances before each assault, so they've thought this far ahead.]]

* CrossesTheLineTwice: A lot of scenes that would be considered horrifying in a different film wind up being hilarious in this one. Evan's fate at the end [[spoiler: buried up to his neck in the backyard with a gag in his mouth and his phone showing a certain video of him going viral]] is especially funny.