Based off of a really amazing novel, Shutter Island is a twisty piece of film that has a gut punch of a conclusion. DiCaprio’s portrayal of a U.S. Marshall who’s investigating a psychiatric facility on Shutter Island, and the dark things that he uncovers, is compelling.

You find out in the end that the man he’s trying to find, is himself – he’s the patient who killed his wife. The whole ‘investigation’ was a therapeutic intervention, playing into his delusions to see if he’d own up to his guilt or regress. When he regresses, they decide to give him a lobotomy, but not before he utters the chilling line “Which would be worse – to live as a monster, or to die as a good man?” This leaves the audience wondering if he truly remembers what he did and is choosing to permanently forget.