The line from the Sixth Sense, "I see dead people," might just be one of the most referenced quotes of all time, but it really does give insight into what M. Night Shyamalan's supernatural thriller is about. Child psychologist Malcom Crowe (Bruce Willis) is accosted in his home by former patient Vincent Grey, who accuses him of mistreating him as a child, resulting in Vincent shooting Malcom and then himself. In the following year, Malcom begins working with Cole Sear (Haley Joel Osment), a nine year-old experiencing hallucinations of dead people, to redeem himself after failing Vincent. With one of the biggest plot twists in film history, The Sixth Sense will completely blow your mind as the credits roll.