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.
Verdict: Unknown
> Jesús Franco (Director)> Juan Soler (Director of Photography)
> Jesús Franco (Screenplay)
Antonio Mayans
Lina Romay
Howard Vernon
Juan Soler
Ángel Ordiales
Eugenia Farach
Juana de la Morena
Daniel Katz
Mari Carmen Nieto
Antonio Rebollo
Verónica Arezchavaleta
Ramón García
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