->''I warned you not to go out tonight.''
-->-- '''{{Tagline}}'''

A horror film from 1980. It was directed by William Lustig (''Film/ManiacCop'', ''Film/UncleSam'') and stars Joe Spinell in the title role.

It follows the exploits of the [[HeManWomanHater woman-hating]] and [[FreudianExcuse mommy issues]]-ridden psychopath Frank Zito, who wanders the streets of TheBigRottenApple from one brutal kill to the next, breathing heavily and babbling incoherently all the while.

The film's effects were provided by Creator/TomSavini, which includes the infamous "Disco Boy Scene" where a man's [[YourHeadAsplode head explodes]] from a close range shotgun blast.

The film also has the dubious honor of being one of three movies the late [[Series/SiskelAndEbert Gene Siskel]] had ever walked out on.

The year 2012 was treated to a remake that was produced and written by Alexandre Aja and which had Creator/ElijahWood star as the title character. It is mostly the same story, but with the twist that almost the entire film is [[UnbrokenFirstPersonPerspective shot from a first-person perspective]]. It also incorporates online dating.

!!Tropes in the film:

* AffablyEvil: Despite being a psychotic SerialKiller who murders women for their scalps, Frank is a really nice guy when he's not sitting in his room rambling.
* AllInTheEyes: Used when Frank wakes up, CatapultNightmare-style, and light is shining on his eyes.
* AnArmAndALeg: Frank sees his hand being chopped off in his last hallucination.
* BedmateReveal: When Franks gets up from his bed, the audience is shown that the corpse of his latest victim is laying next to him.
* BigBad: Frank Zito, the SerialKiller VillainProtagonist.
* BigWordShout: ''"MOTHEEEEEEER!!!"''
* BloodSplatteredInnocents: Disco Girl gets covered with Disco Boy's blood when Frank shoots him.
* BoomHeadshot: Disco Boy's death, courtesy of a double-barrel shotgun blast by Frank.
* BreakingTheFourthWall: Frank addresses the viewers at one point. But hey, he's just crazy.
* BulletTime: Used when Frank shoots Disco Boy and when he attacks one of the Anna's photograph models.
* CampingACrapper: Frank chases a nurse into a subway restroom and kills her there.
* CreepyDoll: Various mannequins which wear scalps from Frank's victims that he keeps around his apartment.
* DeathByAdaptation: [[spoiler: Anna]] in TheRemake.
* DisposableSexWorker: Frank's second on-screen victim is a hooker whom he picks up from the streets, and proceeds to strangle in bed.
* TheEndOrIsIt: [[spoiler:Frank goes off the deep end, hallucinating that his victims have returned to take revenge, stabbing himself in the stomach in his madness. The cops show up to arrest him, and find him lying on his bed. They go get the coroner, and his eyes open the moment they close the door.]]
* ExcitedShowTitle
* FreudianExcuse: Frank's mother was a prostitute who [[AbusiveParents beat him]] and would lock him in the closet when she was with her johns. That would certainly explain his awkwardness around the fairer sex, as well as why he kills women that remind him of her.
* GraveMarkingScene: Frank visits his mother's grave near the end.
* {{Hallucinations}}: Frank starts having these when Anna hurts him at the funeral.
* JobTitle
* MakeOutPoint: Disco Boy and Disco Girl drive into one near the Verrazano-Narrows Bridge for some AutoErotica. Unfortunately, they were followed by Frank.
* MissingMom: Frank misses his mother, despite the horrible abuse she put him through.
* MurderousMannequin: Frank hallucinates being ripped apart by his own mannequins (on which he placed the scalps of his victims) in both versions of the film.
* MyGodWhatHaveIDone: Frank has this reaction to most of his murders. It doesn't stop him from committing them, though.
* NoNameGiven: Most of the characters.
* NoTellMotel: Frank takes the hooker whom he intends to kill into a establishment like this.
* OffWithHisHead: Frank's final hallucination has his mannequins come to life and ripping his head off.
* OneWordTitle: Which describes the AxCrazy Frank.
* TheRemake: The unmade sequel was apparently going to be a remake of the 1975 film ''[[http://www.imdb.com/title/tt0070572/ The Psychopath]]''. And of course, there's the remake of the original.
* RiseFromYourGrave: Frank has a hallucination at the graveyard of his mother's maggot ridden corpse rising from the grave and grabbing him.
* SenselessViolins: Frank carries his shotgun in a violin case.
* ShovelStrike: Anna attacks Frank with a shovel when he is chasing her in the cemetery.
* SinisterSubway: Frank follows one one of his victims hrough one.
* SlashedThroat: Frank does this to his first on-screen victim (whom he finds on the beach waiting for her boyfriend) with a razor blade.
* SpiritualSuccessor: ''The Last Horror Film'', which features Caroline Munro and Joe Spinell in nigh-identical roles.
* StalkerShrine: There's one for Frank's mother, that's right next to his bed.
* VillainProtagonist: The film follows Frank point of view.
* WoobieDestroyerOfWorlds: When you take Frank's miserable life and general loneliness into account, he becomes a lot more pitiful than revolting. Made all the worse by his instant remorse whenever he claims a victim.
* YourHeadASplode: Disco Boy's head explodes thanks to a shotgun blast.
* YourCheatingHeart: Disco Girl attempts to cheat her boyfriend with Disco Boy at the MakeOutPoint. Frank then arrives and kills them both.

!!The remake has examples of:

* DownerEnding
* FinalGirl: [[spoiler:Subverted with Anna, as she dies this time around]].
%%* KillEmAll
* MythologyGag: Lucie tells Frank that he's "Not what I imagined, I thought you'd be fat with long greasy hair". This is a reference to Joe Spinell, the actor who played Frank in the original.
* RageAgainstTheReflection
* ShoutOut: The film includes a version of [[Film/SilenceOfTheLambs Q Lazzarus' "Goodbye Horses."]]
%%* VomitIndiscretionShot: From a first-person perspective, no less.