A serpent, created by radioactivity, threatens a Spanish coastal town.

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Main Cast: Timothy Bottoms, Taryn Power, Jared Martin, Ray Milland, Gérard Tichy, Carole James, Jack Taylor, León Klimovsky, Charly Bravo, Víctor Israel

Director: Amando de Ossorio

Writer: Amando de Ossorio

Editor: José Antonio Rojo

Cinematographer: Raúl Pérez Cubero

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