A newsman works with a blind puzzle-solver to uncover a deadly conspiracy linked to a genetic research facility.
Cast
James Franciscus
Carlo Giordani
Karl Malden
Franco Arnò
Catherine Spaak
Anna Terzi
Pier Paolo Capponi
Police Supt. Spini
Horst Frank
Dr. Braun
Rada Rassimov
Bianca Merusi
Aldo Reggiani
Dr. Casoni
Carlo Alighiero
Dr. Calabresi
Vittorio Congia
Righetto (cameraman)
Ugo Fangareggi
Gigi the Loser
Tom Felleghy
Dr. Esson
Emilio Marchesini
Dr. Mombelli
Fulvio Mingozzi
Spimi's man
Corrado Olmi
Morsella
Pino Patti
Barber
Umberto Raho
Manuel's ex-lover
Jacques Stany
Prof. Manera
Stefano Oppedisano
Taxi driver
Ada Pometti
Telephone operator
Walter Pinelli
Unknown
Sascha Helwin
Unknown
Marie Louise Sinclair
Film starlet
Martial Boschero
Unknown
Cinzia De Carolis
Lori
Werner Pochath
Manuel
Tino Carraro
Prof. Fulvio Terzi
Ettore Arena
Billiard Player (uncredited)
Aristide Caporale
Smoker in the Billiard Hall (uncredited)
Giovanni Di Benedetto
Chief of Police Salmi (uncredited)
Margherita Horowitz
Lori's Babysitter (uncredited)
Giuseppe Marrocco
Man at Table in the Saint Peter's Club (uncredited)
Gennarino Pappagalli
Man in the Terzi's Institute (uncredited)
Aldo Parenti
(uncredited)
Franco Ukmar
Policeman - Speaks with Morsella About Food (uncredited)
Crew
Dario Argento
Director, Screenplay, Story
Bryan Edgar Wallace
Screenplay
Dardano Sacchetti
Story
Luigi Cozzi
Story
Franco Fraticelli
Editor
Sergio Fraticelli
Assistant Editor
Erico Menczer
Director of Photography
Roberto Pariante
Assistant Director
Salvatore Argento
Producer
Carlo Leva
Production Design, Costume Design
Roberto Brega
Camera Operator
Arturo de Castelterlango
First Assistant Camera
Renato Mascagno
First Assistant Camera
Maurizio La Monica
Second Assistant Camera
Luca Sabatelli
Costume Design
Maura Turchi
Hairstylist
Vincenzo Marchetti
Assistant Makeup Artist
Giuseppe Ferranti
Makeup Artist
Pierantonio Mecacci
Makeup Artist
Massimo Anzellotti
Sound Effects Editor
Luciano Anzellotti
Sound Effects
Romano Pampaloni
Sound Recordist
Mario Ronchetti
Sound
Eugenio Fiori
Boom Operator
Luciano Vittori
Visual Effects, Title Designer
Ennio Morricone
Original Music Composer
Carlo Du Bois
Production Accountant, Administration
Romeo Costantini
Assistant Set Decoration
Firmino Palmieri
Still Photographer
Roberto Bertozzi
Electrician
Francesco Rachini
Electrician
Carlo Vinciguerra
Electrician
Alberico Loreti
Best Boy Electric
Lamberto Verdenelli
Property Master
Franco Pedacchia
Assistant Production Design
Maurizio Migalizzi
Key Grip
Giuseppe Gabrielli
Grip
Ettore Migalizzi
Grip
Giovanni Migalizzi
Grip
Rodolfo Flibotti
Gaffer
Angelo Iacono
Production Manager
Giuseppe Mangogna
Production Manager
Bruno Nicolai
Conductor
Cesarina Casini
First Assistant Editor
Roberta Leoni
Production Secretary
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