Out Today: Shutter Island

In 1954, two U.S. marshals investigate the disappearance of a patient from a hospital for the criminally insane on an island in Massachusetts. They run into trouble when they are deceived by the hospital's chief administrator, a hurricane hits, they uncover a sinister experiment, patients escape, and all hell breaks loose.

[Spoiler ahead, read at your own risk:] In the end of the movie it is revealed that "Teddy" (Leonardo DiCaprio), is actually a delusional mental patient in the hospital. He murdered his manic depressive wife after she drowned their three children. He was a mental patient at the hospital for two years, and the doctors decided to try a roleplay experiment to allow him to live out his delusional fantasy in order to come to grips with reality. The treatment plan works - and the patient is retold what has happened to him and he accepts what he did to his wife. However, in the final scene he fakes having a relapse to a delusional state - in order to get a lobotomy so he will not have to deal with the mental anguish of his act.