After her father has been murdered, the beautiful but allegedly insane Isabella lives in the house of her two nephews. A scenarist in need of inspiration walks on the beach and slowly unravels a series of murders.

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Main Cast: Rossana Podestà, Carlos López Moctezuma, Marco Vicario, Fernando Rey, Alfredo Mayo, José Nieto, Santiago Rivero, Etelberto Franco-Quirino

Director: Julián Soler

Writer: Juan Antonio Bardem

Editors: Antonio Gimeno, Antonio Ramírez de Loaysa

Cinematographers: Alex Phillips, Manuel Merino

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