Dorothy McGuire
Helen
A homicidal maniac stalks a mute young woman in a remote New England mansion.
Helen
Professor Warren
Mrs. Warren
Dr. Parry
Blanche
Steve Warren
Mrs. Oates
Nurse Barker
Mr. Oates
Constable
Dr. Harvey (uncredited)
Neighbour (uncredited)
Murder Victim (uncredited)
The Killer's 'Shadow' (uncredited)
Starry-eyed Man (uncredited)
The Killer's 'Eye' (uncredited) / Director
Freddy (uncredited)
Desk Clerk (uncredited)
Minister (uncredited)
Novel
Director
