Agents across the globe take turns spying on and double-crossing one another in an attempt to locate a valuable formula encrypted in the music code.

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Main Cast: Antonio Mayans, Lina Romay, Howard Vernon, Juan Soler, Ángel Ordiales, Eugenia Farach, Juana de la Morena, Daniel Katz, Mari Carmen Nieto, Antonio Rebollo

Director: Jesús Franco

Writer: Jesús Franco

Editor:

Cinematographer: Juan Soler

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