The movie is about a man who kills his sister's rapist. He ends up in a mental hospital. While there, he finds a girl with whom he will escape with later on. He also becomes friends with a large chubby man with schizophrenia. Later on he meets the father of the man he killed and finds out he killed the wrong person. There's one crazy man in the asylum who bites a live rabbit in the neck out in the yard. Sorry for remembering so little about the...
Originally asked by Daniel Elsby on Stack Exchange (movies) (CC BY-SA 3.0).