[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/law_abiding_citizen1_1147.jpg]]

Clyde Shelton (GerardButler) is a talented engineer and family man whose life is ruined when two thugs break into his house, which results in the death of his wife and child in front of his very eyes.

When the thug who commits the murders gets off with what amounts to a slap on the wrist by testifying against his less guilty accomplice (who gets put to death), Shelton initiates an increasingly elaborate plot to destroy the justice system.

The prosecutor who made the agreement with the thug is the main target of Shelton, so he has to find a way to stop him before it is too late.

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!!This film provides examples of:

* AssholeVictim: No one feels sorry for Darby when [[PayEvilUntoEvil Shelton kills him]].
** [[spoiler: The Judge]] kinda counts, but they're nowhere near as bad as Darby.
*** Pretty much the whole plot of the movie.
*** [[spoiler: Clyde himself could easily be construed as this.]]
* AnyoneCanDie: [[spoiler:About half the cast are dead by the ending, including Shelton]].
* AntiHero: Nick doesn't care nearly as much about justice as his conviction rate. His flaws and mistakes may have created the villain - still, he tries to protect the innocent as well as he can.
* BadassBoast: "I'm gonna pull the whole thing down. I'm gonna bring the whole fuckin' diseased, corrupt temple down on your head. It's gonna be ''biblical''."
** Earlier, "And if we don't?" "Then I kill ''everyone''."
* BatmanGambit: Very successful one. [[spoiler: It still fails in the end.]]
* BewareTheNiceOnes: Clyde.
* BlackAndGrayMorality: Let's see. He's a WellIntentionedExtremist, willing to kill anyone to make his rather simplistic political statements. They're the forces of justice, who start out incompetent and unable to put away the bad guys, and wind up violating civil rights at the drop of a hat and [[spoiler:staging vigilante executions]].
* BlatantLies: Despite the TitleDrop by Clyde, the only citizens never shown violating the law are the somewhat minor characters [[spoiler: who get killed for making a crappy bargain that Clyde understandably feels is a mockery of justice]].
* CrazyPrepared: Clyde Shelton
* CrusadingWidower: Clyde.
* DisproportionateRetribution: Almost every death in the movie could be classified as this.
* TheEngineer: Clyde himself obviously, and he's an extraordinarily [[MagnificentBastard magnificent]] one at that.
* MrFanservice: Clyde, due to being played by GerardButler.
* EveryCarIsAPinto: Averted, even after taking several seconds of [[MoreDakka heavy machine gun fire,]] a van fails to explode. [[spoiler:At least until it's hit with a rocket.]]
* ExactWords: Clyde, to Darby: "I want to keep you out of prison." He didn't say what he wanted to do to him ''instead''.
** Also in Clyde's first interrogation, he's very careful not to give Nick a confession.
* ForcedToWatch: Darby to Shelton, although he probably wasn't intending it.
** [[spoiler:Shelton actually ends up to doing this to Darby with ''himself.'']]
* ForgotAboutHisPowers: Clyde -- ordinary suburban homeowner, described as "a tinkerer", [[spoiler: but turns out to be a genius in defence and violence whose abilities border on the fantastic.]] But he didn't bother to protect his own home from an intruder with a baseball bat. And why? [[spoiler:Because he works best when he has prep time, not when he's surprised by said thug.]]
* FamousLastWords: Often.
* GambitRoulette: Clyde is at times just impossibly good at guessing exactly what everyone is going to do.
* GenreDeconstruction:
** Whether intentionally or not, It's basically a movie about a SuperVillain who [[FreudianExcuse suffered great personal tragedy]] and is now trying to bring down the justice system that failed him. There's no superheroes, no setpieces, and [[spoiler:his plan ultimately fails thanks to Nick figuring the last bomb's location out. And he only was able to do that because Clyde accidentally killed Nick's assistant, whose boyfriend happened to have access to the right information, but wasn't willing to risk his job. Until his girlfriend, ostensibly just a woman who got StuffedIntoTheFridge, was killed by Clyde.]]
** Alternatively, it's a deconstruction of revenge thrillers. Instead of reveling in the VigilanteMan pursuing his own brand of justice, once he quickly succeeds in JumpingOffTheSlipperySlope we find ourselves rooting for the people within the system trying to put a stop to his out-of-control RoaringRampageOfRevenge.
* GoryDiscretionShot: The camera cuts away as Clyde begins his work on Darby, at least, in the theatrical version. The Director's Cut doesn't cut away...
* GroinAttack: Offscreen, but...
--> '''Clyde''': ''(holding up a nasty-looking implement)'' [[BlackComedy This is for your penis, but we'll get to that later.]]
* HeWhoFightsMonsters: Clyde.
* [[spoiler:HoistByHisOwnPetard: Clyde is warned not to remotely activate his last bomb. He does so anyway, only to realize it was moved to under his seat.]]
* HollywoodLaw: Ames must have had one bad defense attorney if he's put to death purely on the say-so of his partner, on the question of which one of them was a murderer, a partner who is implied to have a much longer and nastier criminal record to boot. Apparently he never thought to call the husband as a witness either. And the prosecution are the only ones who even remotely care about his opinion as well, and still dismiss it.
** The reason he's sentenced and his partner is effectively let off is a piece of evidence was contaminated by a CSU during the investigation, and all the admissible evidence is suppressed under Fruit of the Poisonous Tree doctrine. The problem with this is, Fruit of the Poisnous Tree only applies to evidence collected through rights violations, and more often than not it only applies to any confession made by the defendant. A piece of evidence contaminated during investigation of the crimescene isn't applicable.
* HypocriticalHumor: Nick keeps leaving his cell phone on while in court with a certain judge. While in a meeting with her later, her cell rings, and he calls her on it. [[spoiler:Turns out there's a bomb in the phone.]]
* IdiotBall: Clyde's non-confession would have been harder to pull off if Nick had announced something along the lines of "For the record, he just nodded his head".
* ImprovisedWeaponUser: Clyde shivs his cellmate [[spoiler:with the bone from a T-bone steak]]
* InstantSedation: Instant paralysis, but close enough.
* IronicEcho: Clyde deliberately repeats Darby's catch phrase just before dismembering him alive.
** Another one to Nick, "It's not what you know it's what you can prove in court"
* ItsPersonal: [[spoiler: Once Nick's understudy is killed]], Nick is ready to go to war to take Clyde down.
* {{Jerkass}}: Nick Rice starts out as this.
* JokerImmunity: A major point of the movie - the legal system is tied up in tons of red tape and thus no matter what they do they can't get rid of Shelton or even move him somewhere secure, so he is continually able to commit murders with relative impunity.
* KarmicDeath: Darby gets dismembered alive by Shelton, who recites the same line that Darby did before he committed the murders.
** One judge scolds Nick repeatedly for not turning off his cell phone. [[spoiler: She was killed by a bomb in her cell phone, which she hypocritically answered during a meeting with Nick.]]
* LaserGuidedKarma: Less than 10 seconds after displaying flagrant contempt for duty, the rules and even the Constitution itself [[spoiler: a bomb goes off directly in the judge's ear.]]
** [[spoiler: Shelton himself]] gets a dose of this, as his termination of [[spoiler: the understudy in the car bomb spree]] leads directly to [[spoiler: the understudy's boyfriend risking his job to give Nick vital information, and Nick being willing to [[HoistByHisOwnPetard rig Clyde's super-napalm bomb to the underside of the prison cot.]]]]
** Ironically, this contempt for the Constitutional rights of the accused, putting stopping them ahead of the rules, is similar to what Clyde appeared to be trying to encourage.
* LockedRoomMystery: Inverted; Clyde is somehow able to orchestrate elaborate murders while locked in solitary confinement.
* TheLostLenore: Clyde's wife, for whose killer Clyde plots a particularly KarmicDeath. For an added bonus, his [[AdultFear child is murdered too.]]
* TheManBehindTheMan: Who's Clyde's partner? [[spoiler:Turns out it's Clyde.]]
* MightAsWellNotBeInPrisonAtAll: Clyde still commits murders, even in jail. [[spoiler:Turns out getting sent to solitary confinement was part of his plan, since part of the preparations he made before getting arrested included digging a secret tunnel accessible from there.]]
* OhCrap: Clyde's reaction to [[spoiler:the revelation that the bomb had been moved to his cell.]]
** Averted seconds later, [[spoiler:when he resigns himself to his fate, and utterly keeps his calm even with super napalm filling his cell.]]
* OohMeAccentsSlipping: A couple times, GerardButler falls into a little of his native Scottish.
--> '''Clyde:''' [[spoiler: [to Darby] You know why I'll never see my wife and daughter again?]]
--> '''Clyde:''' [[spoiler: [removing his disguise] Cuz yew took them from me.]]
* PayEvilUntoEvil: Clyde dismembering Darby for killing his family.
* ProductPlacement: Nick's understudy uses a Mac (apparently running Windows), and in one scene the staff prominently rolls in large amounts of Pepsi and Dunkin' Donuts. Every car is a Chevrolet.
* PunBasedTitle: The dash is missing from "Law-Abiding" to show that it's the law abiding the citizen, not the other way around.
* RedHerring: Nick's understudy is a minor one - around the time Clyde starts amping up his attacks she starts questioning Nick about whether or not he's in the right, and around the time they start questioning whether he has an accomplice inside their system we learn more about her mysterious boyfriend who never shows his face and "isn't ready" to meet Nick - the audience is briefly led to believe that she may be working with Shelton, and the boyfriend stuff was just another trick of his. [[spoiler: When she dies, that part of the audience who believed that may even think Shelton pulled a YouHaveOutlivedYourUsefulness on her. By the end of the movie, however, her boyfriend does appear, over the internet to give crucial information.]]
** RogerEbert also thought this about [[spoiler: Colm Meaney's character.]]
* RubeGoldbergHatesYourGuts: The movie runs on this trope.
* [[spoiler: SecretUndergroundPassage]]
* ShoutOut: Clyde's "[[LampshadeHanging biblical]]" threat to "pull this [...] temple down on all your heads" is a reference to Samson. [[spoiler:Who [[HoistByHisOwnPetard killed himself in the process]], incidentally.]]
* SpannerInTheWorks: [[spoiler:Clyde kills Nick's staff, including his blonde understudy. Said blonde's boyfriend happened to have access to critical information that he wasn't willing to risk his job over...until his girlfriend was killed.]]
* StrawmanPolitical: Although it shows up the dark side of vigilantism, the movie strongly suggests that the justice system is incapable of dealing with violent criminals, and "proves" this with some questionable logic;
** "Plea bargains are bad, because here are some arbitrarily bad plea bargains for no adequately explained reason."
** "The exclusionary rule is bad, because it got DNA evidence deemed inadmissible when there was no explanation as to what was illegal about how it was obtained."
** "The ''presumption of innocence'' is bad, because this guy who [[LogicalFallacies we, the audience, know committed a crime]] is being granted bail before his trial."
* StrikeMeDownWithAllOfYourHatred: Potentially Clyde's motive (well, it's either that or he's genuinely an OmnicidalManiac). Particularly suggested by this exchange;
-->'''Clyde:''' Our final offer? Is that what this is?\\
'''Nick:''' I don't make deals with murderers any more. You taught me that.\\
'''Clyde:''' ''Finally''.
* TimeSkip: after the sentencing of Darby, cue to 10 years later.
* TitleDrop: Clyde in court, arguing to be granted bail.
-->"Your honor, I'm a [[BlatantLies law-abiding citizen]], just a regular guy, and I am not a flight risk..."
* ToThePain: Clyde goes into great detail about everything he's doing and is about to do to Darby.
* TrailersAlwaysSpoil: Clyde's past as a [[spoiler: government weapon designer and "executive action" mastermind]] isn't revealed for over half the movie. The reveal itself is in the trailer, along with [[spoiler: the Judge's execution, the mass car bombing, the drone attack in the cemetery and Clyde's napalm-induced end.]]
* VillainProtagonist: Clyde is briefly alluded to be this in the trailer and the movie when the camera follows him up to the murder of Darby. [[spoiler: The movie's actual protagonist turns out to be [[AntiHero Nick]].]]
* VillainsNeverLie: Clyde usually upholds his end of bargains (as long as the other side complies down to the minute), gives hints as to what he's going to do, and confesses when he's ready to. It's conspicuously averted when he tells the judge he's a [[TitleDrop law-abiding citizen]], though (in other words, he tells the truth everywhere except in court). He also falsely tells Darby that he tazed a male cop.
* WellIntentionedExtremist: On one hand, Clyde Shelton is sympathetic; he watched his wife and daughter get brutally murdered before his eyes, then watched the thug who did it get off with a slap on the wrist. On the other hand, that doesn't give him an excuse to [[JumpingOffTheSlipperySlope try and destroy the justice system]].
* WhatCouldHaveBeen: Originally GerardButler was supposed to be Nick while Creator/JamieFoxx was signed to play Clyde. At the last minute, though, Gerard thought it would be interesting to play Clyde, and asked Jamie if he minded switching roles. Jamie loved Gerard's performance in ''300'', and thought that as a viewer he would love seeing Gerard "beating people and blowing stuff up". Butler said that having Foxx and himself switch roles would be "awesome".
* WhatTheHellHero: The entire point of the movie. Clyde thinks he's doing this to the entire Justice system, and Nick keeps calling him out on it.
** "Fuck [my] Civil Rights." Everyone in the courtroom is looking at Clyde like he's crazy.
* WoobieDestroyerOfWorlds: Clyde eventually tries to destroy the entire justice department of Philadelphia, because they failed to properly punish the slayers of his family.
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