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A SlasherMovie from 1983.

Melissa has moved to a small town with her parents, as her father has come there to work on an archeology dig. As her [[DangerousSixteenthBirthday sixteenth birthday]] comes closer, boys who hang around her keep dying horribly.
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!!This film has the examples of:

* AssholeVictim: [[spoiler:Johnny, Billy, and Jimmy]].
* AttemptedRape: Billy and his pal decide to have their way with Melissa after they beat the crap out of Jason and find her soon after in the woods. She loses consciouness, and they are killed soon after.
* AttentionWhore: Marci accuses Melissa of being this after she gets Greyfeather killed by telling that she saw him near Tommy's corpse.
* AutoErotica: Melissa convinces to Johnny to take her for a ride, and he takes them to secluded spot (which he claims to be an old IndianBurialGround) to have some fun.
* DeadPersonImpersonation: [[spoiler:Tricia took the identity of her late sister Joanne. Also counts as an example of MySiblingWillLiveThroughMe]].
* DrivenToSuicide: [[spoiler:Joanne decides to end things this way after the sheriff fails to convince her to give up her knife. Her sister apparently died by suicide as well, though it is implied that her father likely killed her (or at least contributed to her death)]].
* EasilyForgiven: Marci’s aforementioned calling out of Melissa is quickly followed by Marci realizing that she hurt Melissa’s feelings and apologizing to her. Melissa accepts and the two become friends.
* TheEndOrIsIt: [[spoiler:The film ends with Melissa holding the bloody knife that her mother killed herself with, and a worrisome look on her face]].
* FinalGirl:
** Melissa subverts aspects of this trope by being uninhibited when it comes to dating (though whether she’s a virgin is never mentioned), though is also shown to be a lonely girl with a FriendlessBackground due to her father’s archeologist job forcing her to move from town to town. [[spoiler:Moreso, she was never a target of the killer, her own mother]].
** Marci, on the other hand, plays this straight by being a bookish NiceGirl who seems to think of herself as a KidDetective and is more interested in murder mysteries and school than relationships.
* {{Foreshadowing}}: [[spoiler:Joanne Morgan reintroduces herself to George Martin, an old friend, but he initially has difficulty recognizing her. The finale reveals why he didn’t recognize her at first: Joanne isn’t Joanne, but rather her sister Tricia, who took her sister’s identity after she died]].
* FreudianExcuse: [[spoiler:Joanne Morgan (a.k.a. Tricia Platt) was abused by her father (physically and possibly sexually) during her childhood alongside her sister, who then committed suicide. Joanne’s murder of her father and her sister’s suicide contributed to her SanitySlippage during the film]].
* GrievousBottleyHarm: Jason breaks a bottle over the head of Billy's pal, and Billy readies himself for a fight with one of his own.
* KidDetective: Marci fancies herself as one, which Hank derisively refers to as a “Dick Tracy” act.
* {{Leitmotif}}: Melissa is occasionally accompanied with one.
* MaleGaze: Some shots of Melissa’s body (including the below mentioned ShowerScene) are shown during the film.
* NeverSuicide: Burke’s belief about [[spoiler:Grayfeather]]’s death, which is heavily implied to be the truth.
* PoliticallyIncorrectVillain: The Franklin brothers, who have explicit contempt for the Native Americans Jason and Grayfeather. It’s heavily implied [[spoiler:Billy Franklin and his friend killed the latter because of Melissa’s accusation]].
* ReasonableAuthorityFigure: Sheriff Dan Burke, who is shown to be a protective father and thorough investigator who doesn’t believe that Jason would be a killer. Additionally, he calls out anti-Native American bigotry among the townspeople.
* RedHerring:
** [[spoiler:All the evidence point at Jason Longshadows being the culprit, especially after he breaks out from jail]].
** [[spoiler:Melissa herself is suggested as a potential suspect, given her proximity to the victims]].
* TheReveal: [[spoiler:Melissa's mother Joanne is the killer. She was driven mad in the past by her sister's death at her father's hands. Return to her hometown brough these memories back, and in a twisted way, [[MamaBear she was protecting her daughter]] in her sister's stead]].
* SanitySlippage: [[spoiler:Joanne Morgan’s inability to deal with her traumatic past leads her to kill four people who went anywhere near her daughter. The finale also implies that Melissa herself has fallen into this after witnessing her mother’s suicide]].
* ShowerScene: After the opening credits, the film shows a gratuitous scene of Melissa in the shower.
* SkinnyDipping: Melissa convinces Hank to join her to swim in nude.
* TwoShotsFromBehindTheBar: A bar fight threatens to happen when Billy and his pal pick on Greyfeather, and Jason comes to help him. The bartender then aims his shotgun at them to break it.
* WhamShot: [[spoiler:Dan and his secretary/love interest Cathy finding an article detailing a teen’s suicide from 1956. The teen’s name? Joan Platt - supposedly Joanne Morgan’s maiden name]].

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