Dr. Francis Clay
Cheryl Hume
Anne Palmieri
Mara
Professor Osterman
Ruth
The Gardener (as John Ely)
Nurse Helen
Chaffeur
Policeman
Inspector
Nurse
Male Nurse
Cheryl's Husband
Patient
Ruth's Husband
Nurse Killed with Scythe (uncredited)
A Place Where Nothing Is Forbidden!
A masked killer stalks an institution for mentally disturbed rich women.
