In the end of the Sixteenth Century, in France, the cruel witch-finders Bernard de Fossey, Nicolas Rodier and Pierre Burgot arrive at the house of a wealthy man that has two daughters and one stepdaughter. His older daughter, Catherine, is in love with Jean Duprat, who travels to Marseille to ask for permission to his uncle to marry Catherine. However, in the return, he is murdered by thieves on the road and Catherine fall in depression. Bernard, who has put his eyes on Catherine since he met her, hits on her. Meanwhile, the one-eye servant Renover denounces young women that have reject him as if they were witches, and they are tortured and killed. When Catherine has a dream with Jean, she believes that her beloved lover was murdered by men hired to kill him and she becomes obsessed to lean by whom.