A man, nameless, wakes up in Manhattan in a stranger's apartment with few memories of who he is. He remembers a life in California and the love of a girl named Sarah--memories that don't match the life he now finds himself in. Losing hold of what he can say for certain about his life, he turns to a doctor who claims he can help recover more memories through hypnotic regression. But when the sessions start to blur the line between what has happened...