"A faceless killer who hunts women can only be stopped by a detective with a disturbing past."
Arturo de Córdova
as Juan Carlos Lozano
Carmen Molina
as Ana Maria
Miguel Ángel Ferriz Sr.
as Dr. Eugenio Britel
Queta Lavat
as Rosa Martínez
Chela Campos
as Cantante
Fernando Galiana
as Detective en Guadalajara
Armando Sáenz
as Novio de Rosa
Ramón Sánchez
as Hampón en cabaret
Kika Meyer
as Prostituta asesinada
Wolf Ruvinskis
as El Monstruo
Julio Daneri
as Jefe de Detectives
Matilde Palou
as Madre de Juan Carlos
Josefina Burgos
as (uncredited)
Gregorio Acosta
as Hombre en cabaret (uncredited)
Emilio Garibay
Juan Orraca
Juan Bustillo Oro
Writer
Director
Horacio Calvillo
Camera Operator
Raúl Lavista
Original Music Composer
Jorge Stahl Jr.
Director of Photography
Joaquín Ceballos
Assistant Editor
Jorge Busto
Editor
José Alcalde
Production Manager
Jesús González Gancy
Sound Recordist
Gonzalo Elvira
Producer
Javier Torres Torija
Production Design
Carl Carvahal
Antonio Mendoza
Script Supervisor
Valerio Olivo
Assistant Director
León Sánchez
Elda Loza
Makeup Artist
Antonio Bustos
Editorial Coordinator
Alberto Ladrón de Guevara
William W. Claridge
Other
José B. Carles
