一个蒙面杀手潜入了一个精神病院，他的目标是院里的一个有钱的女病人……
Klaus Kinski
Dr. Francis Clay
Margaret Lee
Cheryl Hume
Rosalba Neri
Anne Palmieri
Jane Garret
Mara
John Karlsen
Professor Osterman
Gioia Desideri
Ruth
Giangiacomo Elia
The Gardener (as John Ely)
Monica Strebel
Nurse Helen
Fernando Cerulli
Chaffeur
Sandro Rossi
Policeman
Giulio Baraghini
Ettore Geri
Inspector
Antonio Radaelli
Carla Mancini
Nurse
