The director of the cult hit pi returns with an equally unsettling piece, this time concerning drug addiction and sexual abuse. Adapted from the novel by Hubert Selby Jr. (author of the controversial Last Exit to Brooklyn), Requiem for a Dream is the story of four individuals who are each, in their own way, writhing in the coils of an addiction, and striving desperately to attain some kind of sanity in their lives. From this unflinching material, Aronofsky has fashioned a dark and fascinating film about betrayal, and the inability to love.