Raising Cain

Raising Cain is a 1992 American psychological horror thriller film written and directed by Brian De Palma, and starring John Lithgow, Lolita Davidovich and Steven Bauer. Plot Respected child psychologist Dr. Carter Nix's wife, Jenny, becomes concerned that he is obsessively studying their daughter Amy; he regards her like a scientist tracking the development of his creation. However, Carter himself suffers from multiple personality disorder, as his alternate personalities include violent petty criminal Cain, shy 7-year-old boy Josh, and middle-aged nanny Margo who protects the others at all costs. Carter and Cain are killing young mothers to procure their children, apparently for experiments performed by Carter's father, a child psychologist who lost his license years earlier after performing unethical experiments on children. Jenny is having an affair with her ex-boyfriend Jack Dante, the widower of a former patient, and she plans to leave Carter for him. When Carter discovers their tryst, Cain takes over and begins leaving subtle clues for the police implicating Jack in the murders. Next, he attempts to kill Jenny by suffocating her and submerging her car in a lake. She escapes, however, and confronts Carter at home. Unable to find Amy, Jenny demands Carter tell her where she is. Carter replies that she is with his father - only for an incredulous Jenny to reply that his father has been dead for years. The police contact Dr. Lynn Waldheim, who co-wrote a book with Nix Sr. called Raising Cain, about a boy with multiple personality disorder. Nix Sr. had extensive detailed knowledge of Cain's tortured childhood, including taped recordings of their sessions. However, Waldheim was never allowed to meet Cain. She eventually discovered the truth: Nix Sr. dispassionately put his own son through years of severe child abuse to gain firsthand accounts of his traumatic psychological development and study the emerging personalities. Horrified, Waldheim quit the project. Nix Sr. then disappeared, leaving behind a suicide note. After the police make the connection, Carter is apprehended for attempted murder. Waldheim is sent in alone to interrogate him.