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

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

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

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

* AllInTheEyes: Used when Frank has a catapult nightmare.
* AnArmAndALeg: Frank sees his hand being chopped of in his last hallucination.
%%* AxCrazy: Frank.
* BedmateReveal: When Franks gets up from his bed, we're shown his latest victim next to him.
* BigWordShout: ''"MOTHEEEEEEER!!!"''
* BloodSplatteredInnocents: Disco Girl gets covered with Disco Boy's blood when Frank shoots him.
* 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.
* FinalGirl: Anna in both remake and original. [[spoiler: Subverted in the remake where she dies.]]
%%* GoodScarsEvilScars
%%* {{Gorn}}
* GraveMarkingScene: Frank visits his mother's grave near the end.
* {{Hallucinations}}: Frank starts having these when Anna hurts him at the funeral.
* [[spoiler: KillEmAll]]: In the remake.
* MakeOutPoint: Disco Boy and Disco Girl drive into one near the Verrazano-Narrows Bridge for some AutoErotica. Unfortunately, they were followed by Frank.
* 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.
* MythologyGag: In the remake, 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.
%%* NiceGirl: Anna.
* NoNameGiven: Most of the characters.
* OffWithHisHead: Frank's final hallucination has his mannequins come to life and ripping his head off.
* OneWordTitle
* PsychopathicManchild: Frank is this distilled in pure form.
* 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.
* ShoutOut: The Remake includes a version of [[SilenceOfTheLambs Q Lazzarus' "Goodbye Horses."]]
* 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 it to his first on-screen victim.
* SpiritualSuccessor: ''The Last Horror Film'', which features Caroline Munro and Joe Spinell in nigh-identical roles.
* StalkerShrine: For Frank's mother.
* VillainProtagonist: The film follows Frank point of view.
* VomitIndiscretionShot: In the remake. From a first-person perspective, no less.
* WoobieDestroyerOfWorlds: Frank who is pitiable despite the utter viciousness of his murders.
* 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.