In this taut psychological thriller, Marcus struggles with parasomnia, a rare sleep disorder which makes him do things in his sleep which he cannot remember the next day. His situation takes a startling turn when Marcus wakes up with blood on his hands and a knife at his side. That same morning, a close friend is found stabbed to death. Marcus frantically tries to put the pieces together - while sleepwalking, could he have murdered his friend to hide a dark secret between them? The police close in as Marcus investigates his own nocturnal activities, desperate to figure out what happens after he goes to sleep. His gripping journey to uncover the truth leads him to a shocking discovery.