A businessman is stalked by his murderous twin brother, who has just been released from a mental hospital.
Ben Ryder / Harry Ryder
Donna Ryder
Lt. Conde
Det. Trelska
Genovese
Anthony Scarnato
Tina
Mr. Rafferty
Sharon Ryder
Jeff Ryder
Greg Anderson
David Sallinger
Bud Harris
Ollie Crandall
Dr. Marvin Cohen
Dr. Hollis
Wineman
Cathy Scarnato
Harry Stanton
Ernest Deems
Vincent Malle
Charlie
Simon
Oop
Rockie
Tommy
Patrolman Clark
Helen Neary
Car Rental Clerk
Delivery Man
Apartment Manager
Ski Shop Clerk
Music
Editor
Set Decoration
Producer
Makeup Artist
Costume Supervisor
Casting
Director of Photography
Teleplay
Novel
Hairstylist
Art Direction
Costume Supervisor
Director