John Totersohn is tormented by nightmares that are frighteningly real. After seeking help from a psychologist, Dr. Susan Weiss, he pursues a relationship with Sarah Woods, who is vulnerable to John's good looks and boyish charm. But when Sarah breaks up with John and confesses she aborted their unborn child. John snaps. Completely paranoid, John becomes convinced that Sarah and Dr. Weiss are involved in a twisted conspiracy against him.