
A mute woman, traumatized by her parents' death, faces new horrors when her cousin is murdered by a suspected killer. As danger looms, the truth proves far more complex.
Cast

Carroll Baker
Martha Caldwell

Alan Scott
Dr. Laurent

Ida Galli
Jenny Ascot

Eduardo Fajardo
Marcos

Silvia Monelli
Annie Britton

George Rigaud
Ralph

Franco Fantasia
Inspector Duran

Dada Gallotti
Mayor's Wife

Lorenzo Robledo
Vice Commissioner

Olga Gherardi
Rosalie

José Marco
Father Martin
Luca Sportelli
Capo Stazione

Ángel Menéndez
Judge

Fabián Conde
(uncredited)

Ágata Lys
(uncredited)
Antonio Orengo
-

Ricardo Valle
-
Rosa M. Rodríguez
Christina
Agustín Bescos
Pharmacist (uncredited)

Beni Deus
(uncredited)
Lorenzo González
Unknown
Francisco Ruiz
Unknown

Romano Moraschini
Policeman (uncredited)
Crew

Umberto Lenzi
Director, Screenplay
Enzo Alabiso
Editor
José F. Aguayo Jr.
Director of Photography

Franco Fantasia
Assistant Director
Giuseppe Di Biase
Camera Operator

Silvio Laurenzi
Costume Design
Aldo Signoretti
Makeup & Hair
Oscar De Arcangelis
Sound Engineer
Marcello Giombini
Original Music Composer
Piero Filippone
Set Decoration
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