A young man returns from Rome to his sister's satanic New York apartment house.
Leigh McCloskey
as Mark Elliot
Irene Miracle
as Rose Elliot
Eleonora Giorgi
as Sara
Daria Nicolodi
as Elise Stallone Van Adler
Sacha Pitoëff
as Kazanian
Alida Valli
as Carol
Veronica Lazăr
as Nurse
Gabriele Lavia
as Carlo
Feodor Chaliapin Jr.
as Professor Arnold / Dr. Varelli
Leopoldo Mastelloni
as John, the Butler
Ania Pieroni
as Musical Student
James Fleetwood
as Cook
