Haunted by memories of his ex-girlfriend Alice, a heartbroken Billy returns home to Northern Virginia seeking solace from old friends. But what he finds there is more disconcerting than comforting: his best friend Stanley has become unstable, mysterious, and withdrawn from those around him. Billy teams up with another old friend, Stanleys roommate Christian, to find out whats going on, and as they probe Stanleys recent activities, their friends behavior seems more and more bizarre and frightening. The discovery of blood-stained evidence among Stanleys possessions pulls them deeper into their friends nightmare — and eventually leads to a violent confrontation that not everyone will survive.