->''"The killer is coming!"''

Released in 1980, the '''''Prom Night''''' opens with a [[AccidentalMurder unfortunate death of a child]], caused by a group of kids playing a variation of hide-and-seek in an [[AbandonedArea abandoned building]] teasing a girl, leading her to fall from a window. The kids never told anyone what happened and the little girl's death was blamed on Leonard Murch, a psychopathic sex fiend who is caught shortly after.

Several years later, students of Hamilton High are preparing [[HorrorDoesntSettleForSimpleTuesday for prom]]. But unbeknownst to them, a masked killer looking for revenge has invited himself to it.

The film features Creator/JamieLeeCurtis and Creator/LeslieNielsen in starring roles, and has since become a cult classic, especially among slasher fans, even inspiring some elements of ''Film/{{Scream 1996}}''. It is also remembered for its [[CultSoundtrack disco soundtrack]], which is sought out by collectors. It was also popular enough to receive three InNameOnly sequels; ''Film/HelloMaryLouPromNightII'' (1987), ''Film/PromNightIIITheLastKiss'' (1990) and ''Film/PromNightIVDeliverUsFromEvil'' (1992). [[Film/PromNight2008 A loose remake]] was also released in 2008.

!!This film has the examples of:

* {{Adorkable}}: Slick. Despite being less smooth than [[IronicNickname his nickname would imply]], he still manages to win Jude over.
* AllGirlsWantBadBoys: Averted, as all the girls are repulsed by Lou. Good girl Kim and bad girl Wendy are in fact rivals for good boy Nick.
* AlphaBitch: Wendy was this right from childhood as she manipulated a group of other kids to keep the accidental death of Robin a secret. She grows up to be a very straight example of this, as she's openly jealous of Kim being voted Prom Queen and taking her boyfriend Nick. She then attempts to win her man back and sabotage the prom.
%%* AngstySurvivingTwin: [[spoiler: Poor Alex]]
* AssholeVictim: Wendy and Lou, who conspire to ruin the prom crowning of Nick and Kim for their own ends.
* AutoErotica: Jude and Slick use the latter's van to have some good times by the bluffs.
* AnAxeToGrind: Killer's weapon of choice for killing his targets in the prom.
* BallroomBlitz: The disco themed prom is ruined by the killer scaring everyone off by decapitating Lou, and then attacking the Prom King.
%%* BettyAndVeronica: Kim and Wendy.
* BewareTheNiceOnes: [[spoiler:Easygoing Alex, who seems perfectly happy helping with the lighting at the prom rather than attending with a date.]]
* BigBad: The killer, [[spoiler:who [[TheReveal turns out to be Alex Hammond]], who is seeking to avenge the death of his sister Robin]].
* BigOlUnibrow: Lou, a Type I unibrow sporter due to being an asshole.
* BlindWithoutEm: When Jude comments about the amount of the stars in the night sky to Slick, he replies that he guessed about it, as he sees poorly without his glasses.
* BookSafe: Slick keeps his joints in a hollowed history book.
* BoundAndGagged: Nick tied up with tape and left hidden in a corner of a backstage after being attacked by Lou and his goons.
* CassandraTruth: Sykes tries to warn the partiers about the killer, but he is so drunk that he is taken away to the police.
* ChairmanOfTheBrawl: Kim throws a chair at the killer during the climactic confrontation.
* ChekhovsGun: Lou's ski mask that Principal Hammond throws into a garbage bin later appears worn by the killer.
* ChildrenAreCruel: Robin dies due to the teasing of the other kids in the opening.
%%* ClingyJealousGirl: Wendy to Nick.
%%* CoolBigSis: Kim to Alex.
* CrustyCaretaker: Mr. Sykes, the janitor of Hamilton High is a weird guy who stares at the girls creepily.
%%* CuteBookworm: Jude
%%* DaddysGirl: Kim
* DarkSecret: The children who accidentally kill Robin vow to tell no one. [[spoiler:They don't realize someone else figured out what happened.]]
%%* DeadpanSnarker: Wendy at times.
* DeathBySex: Averted with Kelly, who is killed just after she chickens out on going through with the deed with her boyfriend Drew. Played straight with Jude and Slick, whose first time turns out to be their last.
* DestinationDefenestration: Robin dies as she accidentally falls through a window in the opening.
* DevelopingDoomedCharacters: Over an hour is used to build up the characters before the killer offs his first victim.
* DownerEnding: [[spoiler:All but one of the secret keepers die, the surviving target's secret is exposed, destroying his reputation, and the killer gets an AlasPoorVillain sendoff as he dies in his sister's arms while sobbing about his ''other'' sister's death and the injustice of her killers covering it up. Not to mention [[ArsonMurderAndJaywalking the prom is completely ruined]].]]
* DramaticUnmask: The killer is unmasked as he lays dying on the ground in the ending.
* EvenEvilHasStandards: Wendy tells Lou she doesn't want their prank to ruin the prom crowning to seriously hurt anyone.
* EveryCarIsAPinto: Slick's van explodes immediately after it rides over the edge of the bluffs.
%%* EveryoneIsASuspect
* FinalGirl: [[spoiler:Kim is built up to be one, but it is then subverted when it's revealed that she wasn't a target at all]].
** [[spoiler:The film does, however, feature a final boy with Nick, the only target to live. All three female targets die.]]
* FollowTheLeader: Came in the wake of ''Film/{{Halloween 1978}}'', also starring Creator/JamieLeeCurtis
%%* FragileFlower: Kelly
* GraveMarkingScene: The first scene after the TimeSkip is the Hammond family visiting Robin's grave.
* HarassingPhoneCall: The killer makes threatening phone calls to his soon-to-be victims.
* ImprovisedWeapon: The killer breaks a mirror in girls' changing room, and uses one of its shards to kill Kelly.
* InfantImmortality: Averted in the opening, as it opens with the accidental death of Robin.
* LadyInRed: Wendy's outfit for the prom is a glittery red dress.
* LittleNo: Kim lets out one [[spoiler:when she realizes that the killer is her brother Alex]].
* LoveTriangle: Wendy loves Nick, but Nick loves Kim and Wendy isn't happy about it.
* MaleGaze: We get two gratuitous shots of camera following a female character's behind.
* ManOnFire: Leonard Murch in [=McBride's=] flashbacks is shown leaving his crashed and flaming car while on fire.
* MatchCut: The shot of Kelly's slashed throat is immediately followed by one of a bowl of red punch.
* {{Mooning}}: One of Kim's friends moons Sykes when she sees him picking up trash next to the tennis court.
* MyGreatestFailure: Nick is racked with guilt over his role in Robin's death six years earlier.
* NeutralFemale: Averted. [[spoiler:When the killer goes after Nick, Kim does everything in her power to stop him, which ultimately leads to his death]].
* OffWithHisHead: Lou's head is knocked off with an axe as he waits behind the curtains to become the prom king. His head then rolls to the view of the prom attendants, who promptly panic and leave the premises in a hurry.
* OnceIsNotEnough: Wendy makes a run out of the auto shop and knocks out the killer with a broom in the process, and keeps going when he falls to the floor in pain.
* OralFixation: Lou is constantly chewing gum.
* PeekABooCorpse: Wendy gives out her location to the killer when she is startled by Kelly's corpse dropping from a shelf in the closet that she is hiding in.
* PoliceAreUseless: Lt. [=McBride=] is present at the prom obsessing over the wrong suspect while [[spoiler:the real killer is offing prom attenders practically under his nose.]]
* TheReasonYouSuckSpeech: Principal Hammond tells Lou that he a disgrace to the school and the community before suspending him "indefinitely."
* RedemptionEqualsLife: [[spoiler: Nick, the only one of Robin's tormentors who seems to feel any guilt about her death is the only one who survives the film.]]
* RedHerring: [[spoiler:The escaped psychopath Leonard Murch (who got the blame for Robin's death six years ago), the weird Mr. Sykes and Kim's father, who conveniently disappears once the killings around the schoolgrounds are discovered]].
* RichBitch: Wendy, as evident by the huge house she lives in, her nice car and offhand remarks of buying things.
* SarcasticClapping: Wendy gives one to Kim after witnessing her practicing her moves on the dance floor, followed by her threatening to take Nick away from her.
* ShrineToTheFallen: Robin's photo accompanied by flowers and her teddy bear are displayed on the mantlepiece in the Hammonds' living room.
* SlashedThroat: Kelly meets her death by getting her throat cut with a mirror shard.
* SpeechImpediment: Robin's stammer--possibly why she is ostracized by the other children.
* TheStoner: Slick. He may not have the looks, but he makes up for it with weed.
* UnbuiltTrope: The film was among the first {{Slasher Movie}}s released in the eighties, and it contains some of the typical cliches (the title, death by decapitation, a masked killer etc.) of the era. However, the Unbuiltness is evident by its killer, who isn't silent, slow-walking or a heavy damage shrugging monstrosity. Instead, he's some guy in a ski mask who makes mistakes like any other person would (at one point he rushes after his victim, and in the hurry ''forgets his axe'') and is ultimately defeated [[spoiler:by a blow to the head with a blunt instrument]].
* VillainSong: The end credits song "Fade to Black." Listen closely to the lyrics.
* WhatHappenedToTheMouse: We are not told where [[spoiler:Kim's dad has disappeared to in the end of the movie]].
%%* WoobieDestroyerOfWorlds: [[spoiler:Alex.]]