"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
Rosario Rigutini
as Man
Ryan Hilliard
as Shadow
Paolo Paoloni
as Music Teacher
Fulvio Mingozzi
as Cabdriver
Luigi Lodoli
as Bookbinder
Rodolfo Lodi
as Old Man
Dario Argento
as Narrator (voice) (uncredited)
Ettore Martini
as Burning Building Cop (uncredited)
Corinne Dunne
as Tenant in New York Building (uncredited)
Filippo Perego
Screenplay
Director
Claudio Argento
Producer
Salvatore Argento
Keith Emerson
Original Music Composer
Mario Bava
Thanks
Romano Albani
Director of Photography
Attilio Gizzi
Sound Effects Editor
Maurizio Garrone
Set Decoration
Massimo Lentini
Costume Design
Giuseppe Bassan
Art Direction
Serena Canevari
Script Supervisor
Luciana Maria Costanzi
Hairstylist
Alberto Altibrandi
Gaffer
Francesco Bellomo
Still Photographer
Germano Natali
Special Effects
Pierantonio Mecacci
Makeup Artist
Francesco Cuppini
Giancarlo De Leonardis
Idelmo Simonelli
Camera Operator
Gianlorenzo Battaglia
Underwater Camera
Second Unit Director
Second Unit
Franco Fraticelli
Editor
Franco Groppioni
Sound Engineer
Lamberto Bava
Assistant Director
Anna Maria Galvinelli
Production Assistant
Saverio Mangogna
Giancarlo Laurenzi
Boom Operator
Godfrey Salmon
Orchestrator
Story
Solly V. Bianco
Administration
Agostino Pascarella
Key Grip
Conductor
Michela Prodan
Andrea Piazzesi
Second Assistant Director
Music Arranger
Cesare Jacolucci
Unit Manager
Massimo Anzellotti
Sound Effects
Luciano Anzellotti
Romano Pampaloni
Sound Mixer
Guglielmo Garroni
Executive Producer
Andrew W. Garroni
Production Manager
Angelo Iacono
