A masked killer stalks an institution for mentally disturbed rich women.
Klaus Kinski
Margaret Lee
Rosalba Neri
Jane Garret
John Karlsen
Gioia Desideri
Giangiacomo Elia
Monica Strebel
Fernando Cerulli
Sandro Rossi
Giulio Baraghini
Ettore Geri
Antonio Radaelli
Carla Mancini
Franco Marletta
Piero Nistri
