Al Pereira arrives at the "House of Vice" and receives orders to spy on a crime ring called the Quadriumvirate, who deal in prostitution and drugs.

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Main Cast: Howard Vernon, Montserrat Prous, Anne Libert, Doris Thomas, Luis Barboo, Jesús Franco, Kali Hansa, Manuel Pereiro, Glenda Allen

Director: Jesús Franco

Writer: Elisabeth Ledu de Nesle

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Cinematographer:

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