Clyde Shelton's family is brutally murdered. The ones responsible are caught. However, because of improper procedure, the D.A., Nick Rice only has circumstantial evidence. So he decides to get one of them to testify against the other. When Shelton learns of this, he is not happy. Ten years later, the one who was convicted is being executed but something goes wrong; his execution goes awry and he suffers. They learn that someone tampered with the machine. And the other one is found dead, killed in a gruesome manner. Rice suspects Shelton, so he has him picked up. At first, Shelton agrees to a plea agreement with Rice but changes his mind. It appears that Shelton is not done, it appears he blames the whole system and is declaring war on it going after everyone involved with his family's case. So Rice has to stop him but Shelton is way ahead of him.
While one man's terrorist may be another's freedom fighter, it's not quite as simple when it comes to CIA operatives and your basic serial killer. Or rather, a CIA psycho family man that might make Jack The Ripper envious.
Putting aside the ideological posturing, this hyper-violent fantasy about a seemingly unstoppable killer who continues his murder spree behind bars delivers on its promise of an intriguing mystery, however far-fetched.
A preposterous exercise in high-minded brutality, "Law Abiding Citizen" tries to pass itself off as a dialectic on justice betrayed, but instead plays like a snuff film with our nation's legal system as the victim.