plot_synopsis: Donnie Darko (Jake Gyllenhall) is a troubled teenager in suburban Maryland. A schizophrenic with a history of violence, he has recently stopped taking his medication and as a result is sleepwalking. His parents, Rose and Eddie (Mary McDonnell and Holmes Osborne) and his sisters, Elizabeth and Samantha (Maggie Gyllenhall and Daveigh Chase), worry about him. One night at dinner, Donnie and his sister get into a profane argument during which Elizabeth reveals she knows Donnie is no longer taking his medication. Rose confronts Donnie in his bedroom and he calls her a bitch. Guilty, Donnie resumes 
plot_synopsis_sum: Donnie Darko (Jake Gyllenhall) is a troubled teenager in suburban Maryland. A schizophrenic with a history of violence, he has recently stopped taking his medication and as a result is sleepwalking.