In a 15th-century feudal village a woman is accused of witchcraft and put to death. Her beautiful older daughter knows that the real reason for the execution lies in the lord's sexual desire for her mother. After confronting the lord on the matter she too is killed. A much younger daughter is spared and taken in by her mother's killers. Once she is of age a horrible deadly plague sweeps the land and she marries the lord's worthless son. Then, during a brutal thunderstorm, the older daughter mysteriously reappears and begins to avenge her mother's death.