[[quoteright:301:http://static.tvtropes.org/pmwiki/pub/images/last-house-on-the-left-dvd-cover.jpg]]

->''To avoid fainting, keep repeating: [[MST3KMantra IT'S ONLY A MOVIE, ONLY A MOVIE, ONLY A MOVIE...]]''

Creator/WesCraven's 1972 debut picture, a loose reworking of Creator/IngmarBergman's ''Jungfrukällan (Film/TheVirginSpring)'', tells the story of a group of psychos who torture, humiliate, rape and try to murder two girls and then end up asking for refuge at the home of the parents of one of the girls. This couple then find out who their guests really are...

[[{{Remake}} Remade]] in 2009 by Dennis Iliadis, produced by Craven and starring Sara Paxton, [[Series/TheFortyFourHundred Garrett Dillahunt]], Monica Potter, [[Series/BreakingBad Aaron Paul]], Tony Goldwyn, and RikiLindhome.
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!!This film provides examples of:

* AdaptationalHeroism: In the remake, Justin (Junior in the original) deliberately leaves Mari's necklace out in the open after realizing whose house they're in.
* BewareTheNiceOnes: The Collingwoods look like two ordinary, happily married people, until their daughter gets killed...
* BloodIsSquickerInWater: In the original, [[spoiler:Estelle slashes Sadie's throat]] while the latter is in a swimming pool.
* ChainsawGood
* ChekhovsGun: The necklace Mari gets as a birthday gift (in the original) or that she finds at her vacation home as a gift from her dead brother (in the remake) is instrumental in making Emma realize what happened to Mari.
* CoversAlwaysLie: That picture up there? That's not the house. Jury's out on whether it's even on the left.
* DaylightHorror: Most of what happens to Mari and Phyllis.
* DepravedBisexual: Sadie.
* DirtyCoward: In the end [[spoiler:Krug appears to be this once he realizes that he is truly screwed and that old man Collingwood is gonna take him apart with that chainsaw, and suddenly all his macho psycho b.s. goes right out the window]].
* DirtyOldMan: The elderly mailman at the beginning of the original film describes Mari as "the prettiest piece I've ever seen".
* DrivenToSuicide: [[spoiler: Junior blows his brains out, as commanded by Krug]].
* DownerEnding: [[spoiler: Mari, Phyllis and Junior are dead, and even though Mari's parents have vindicated them, they're most likely going to prison due to the [[PoliceAreUseless stupid sheriff]]]].
** That's a maybe. [[spoiler: The sheriff found out about Mari being kidnapped prior so he might be convinced other wise. They may still head for jail though, if [[Film/{{Se7en}} Brad Pitt showed us anything]].]]
* FanDisservice: Although the original is undeniably lurid, if when watching the rape scene in the remake you find anything remotely erotic about what's happening to Mari there is probably something wrong with you.
* {{Fingore}}: Francis (originally named Weasel) gets, in a very horrific scene in the remake, [[spoiler: his fingers shredded in a garbage disposal]].
* FlippingTheBird: Walking back to town after their car runs out of gas, the cops think they've gotten a lift when a van full of hippies stop for them...then do this while peeling away.
* GroinAttack: Estelle dupes Weasel and starts performing oral sex on him... with [[ManBitesMan gruesome]] [[PayEvilUntoEvil results]].
* {{Gorn}}: [[spoiler: Phyllis' fate.]]
** Most of the remake fits this, too.
* GoryDiscretionShot: As a result of ExecutiveMeddling, we are spared the sight of Krug carving his name in Mari's chest. Also, we don't see Weasel's emasculation.
** Pretty solidly averted in the remake.
* HeelRealization: [[spoiler: Junior has one in both the original and the remake. The remake has more justification due to the fact that it ''was'' his fault the girls were kidnapped.]]
* HeroicBSOD: Mari has one, after having been humiliated, abused, kidnapped and raped, [[spoiler: and ''before'' being murdered.]]
* IgnoredVitalNewsReports: In the original, Mari and Phyllis hear a radio report about the psychos' escape from prison while driving to the city, but pay it no mind.
* KickTheDog: Krug breaks a little kid's balloon with a lit cigarette just for the hell of it.
* LaserGuidedKarma: The fate of Krug and his worthless band of sadists probably count.
* TheLastTitle: The title.
* LyricalDissonance: The Baddies' Song, disturbingly so.
* MamaBear & PapaWolf: Emma (Estelle in the original) and John Collingwood.
* MonsterMisogyny: Though the villains stumbled upon having Mari and her friend, they're quite excited about having them around considering all the "fun" they can have with them, with Weasel wasting no time getting around to raping Phyllis. In the remake, Krug makes note of how innocent and beautiful the two girls are, explaining that he'd "hate for anything to happen to them". Considering what ''does'' happen to them later, it sure sounds like Krug is invoking the trope.
** It's also arguable that this trope is what sells the movie's shock value. It's not just a movie about TorturePorn, it's a movie about TorturePorn committed on ''two innocent women''.
* MoodDissonance: Although this is a horror movie, there are some scenes that seem to be right out of a comedy. [[BigLippedAlligatorMoment The chicken truck]] and [[ItMakesSenseInContext Krug going "Moo!"]] come to mind.
* MoodWhiplash: Okay, Mr. Craven. Please explain why, when the rest of the movie is deathly serious and disturbing, you chose to have the cops be ''comic relief?!?'' And why do you have Krug ''going moo?!?'' Was it to make the movie less frightening for your audience so they won't be fainting? Because to some people, you really overdid it!
* MyGodWhatHaveIDone: Krug and company look guilty when Mari walks in shock towards the lake.
* NightmareSequence: At one point Fred dreams that Mari's parents [[DepravedDentist knock his front teeth out with a hammer and chisel]]. Still would've been better than what actually does happen to him.
* OhCrap: Krug when he realizes that he's lost.
* PoliceAreUseless: The sheriff and his deputy are incompetent buffoons. They even buy into Krug's [[BlatantLies half-assed alibi about being a passing preacher]]. And when they hear of Mari's kidnapping, they not only find out where she is located, but also that they were there a few minutes ago. [[spoiler: Oh, and they were late to the RoaringRampageOfRevenge Party.]] Though to be fair, they ''did'' try to help. It was just that they were held back by several things when they ''did'' go to help.
* RapeAsDrama: Almost all of the drama in this movie consists of two girls being tortured and raped.
* RoaringRampageOfRevenge: [[CrowningMomentOfAwesome Epically]].
* SassyBlackWoman: Subverted as the chicken farmer's cheeky attitude towards the frantic cops helps get [[spoiler: Mari and Phyllis killed.]]
* SoundtrackDissonance: The soundtrack is mostly made of upbeat ballads or outright '''cheery''' music.
** Interesting note: It was all composed (and sung) by none other than David Hess, the actor who played [[BigBad Krug Stillo]].
** And when [[spoiler: they kill off Phyllis]], sounds that probably came from an Atari 2600 game played.
*** An Arp 2600 maybe, but not an Atari for a few years.
* SparedByTheAdaptation: [[spoiler: The remake left Mari and Justin (named Junior in the original) alive, after Justin did a HeelFaceTurn (the movie also made it pretty clear that nothing that happened was his fault). In the original, Mari died, and Junior committed suicide]].
** [[spoiler: Not his fault. At least in the remake he is guilty of putting the girls in an unnecessarily dangerous position by bringing them to the motel in the first place. His father's and uncle's behavior are erratic at best so there is no reason for him to believe that just because they say they won't be coming back doesn't mean they won't be coming back. He could have easily just gone and got the drugs and then come back to the store. Krug even makes a good point when they are all in the room about how thinking they wouldn't be coming back is no excuse for breaking the "Don't bring anyone back to the room" rule and him having to face the consequences of that action. ]]
* TooDumbToLive: Ah, man, we raped [[spoiler: and murdered]] these people's daughter, and they don't even know! Wow, now the mom's giving me a BJ! This is the best road trip ever!
** Well, you can't blame them for not thinking that [[spoiler: maybe Mari would be washed up on shore and her parents will find her, or that Junior would be in the middle of a HeelRealization and having a FreakOut that winds up in the parents finding out.]]
** Also when Paige and Mari follow the obviously extremely weird boy who they barely know, and admit later that they thought he was creepy to begin with, to his dingy hotel room to buy drugs from him. Not to mention the fact that they he is underage so there is no way that he rented the room by himself. Good idea girls, I guess don't talk to strangers doesn't apply if they promise you drugs.
* TorturePorn: The remake.
* [[VideoNasties Video Nasty]]: Regarded as one of most genuinely disturbing films on the list and one of the most notorious.
* WhatHappenedToTheMouse: In-universe examples with Phyllis in the original and Paige in the remake, although in the original it's because a scene where Mari's parents found her still alive was cut. In that scene, Mari's mother asked about Phyllis.
** Though it's pretty obvious that [[spoiler: Phyllis is dead]].
* WouldHitAGirl: Obviously, and applied with reckless abandon, just to show how depraved the villains really are. It goes the other way round with Sadie in the remake [[spoiler: as Mari's father kills her by stabbing her with the shower bar]].
* YourHeadAsplode: Krug's fate in the remake.

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