In the city of Tangier, a woman named Mara (María Félix) suffers from amnesia after murdering her husband, who was about to demand a divorce for having caught her in illicit love affairs with a lover (Vittorio Gassman), who only loves her. interested in finding the place where some precious jewels are hidden. Disoriented, the woman runs away from her and finds the help of Andrés, who falls in love with her and tries to get her memory back. Although her patron saint sees in the tarot cards that a black crown that portends death revolves around the mysterious woman, Andrés ignores her and goes with her to the hotel where the clues indicate that he was staying with her. Mara is kidnapped by her former lover and locked in a gym on her property, but being amnesiac she can't tell him where she hid her husband's jewelry.[3]
