"The film is based on real events, from a case investigated by Detective Valente Quintana."
Miguel Torruco
as Valente Quintana
Rebeca Iturbide
as Silvia del Campo
José María Linares Rivas
as Lic. de la Torre
Elena Julián
as Yvonne
Martha Lipuzcoa
as Margarita
Joaquín García Vargas
as Agente Jiménez
Juan Orraca
as Alejandro
Álvaro Matute
as El Marseilles
Julián de Meriche
as Jefe de plagiarios
Fayard Nicholas
as Bailarín
Harold Nicholas
Yolanda Montes 'Tongolele'
as Bailarina
Matilde Sánchez "La Torcacita"
as Cantante
Trío Orizaba
as Trío
Armando Acosta
as Hombre cabaret (uncredited)
Francisco Beal
as Agente policía (uncredited)
Victorio Blanco
Alfonso Carti
as Policía (uncredited)
Amada Dosamantes
as Agente policía encubierta (uncredited)
Maruja Grifell
as Doña Amada (uncredited)
Ángel Merino
as Maître (uncredited)
José Muñoz
Luis Mussot hijo
as Agente policía encubierto (uncredited)
Pepe Nava
as Esbirro criminal (uncredited)
Ramón Pandal
as Chofer (agente policía) (uncredited)
Valente Quintana
as Self (uncredited)
José Ramírez Osante
as Agente Salgado (uncredited)
Guillermo Ramírez
Polo Ramos
as Secretario general (uncredited)
Manuel Reséndiz
as (uncredited)
Humberto Rodríguez
as Juan (mayordomo) (uncredited)
Rafael Torres
as Anunciador cabaret (uncredited)
Armando Velasco
as General (uncredited)
Zacarías Gómez Urquiza
Director
Writer
Gregorio Walerstein
Producer
Gustavo César Carrión
Music
Manuel Gómez Urquiza
Cinematography
Rafael Ceballos
Editor
Carlos M. Novi
Miguel Ángel Garrido
Casting Director
Jorge Fernández
Production Design
Rosa Guerrero
Makeup Artist
Miguel Horcasitas
Hairstylist
Julio Guerrero Tello
Production Manager
Winfield Sánchez
Assistant Director
Eduardo Arjona
Dialogue Editor
Enrique Rodríguez
Sound Re-Recording Mixer
Leobardo Sánchez
Camera Operator
Ramón Vázquez
Lighting Technician
Eufemio Rivera
Assistant Editor
Javier Carreño
Script Supervisor
Federico Serrano
Assistant Production Manager
Nicolás Rueda Jr.
Title Designer
