Trailer
Cast
Ettore Martini
Burning Building Cop (uncredited)
Teresa Rossi Passante
Pedestrian (uncredited)
Alida Valli
Carol
Gabriele Lavia
Carlo
Feodor Chaliapin Jr.
Professor Arnold / Dr. Varelli
Paolo Paoloni
Music Teacher
Fulvio Mingozzi
Cabdriver
Filippo Perego
Tenant in New York Building (uncredited)
Leigh McCloskey
Mark Elliot
Eleonora Giorgi
Sara
Dario Argento
Narrator (voice) (uncredited)
Corinne Dunne
Tenant in New York Building (uncredited)
Anna Valentino
Smiling Girl in Library (uncredited)
Irene Miracle
Rose Elliot
Daria Nicolodi
Elise Stallone Van Adler
Leopoldo Mastelloni
John, the Butler
Ania Pieroni
Mater Lachrymarum
Sacha Pitoëff
Kazanian
Veronica Lazăr
Nurse