The Long Hair of Death

In 15th-century feudal village, Adele Karnstein (Halina Zalewska) is accused of witchcraft and burned at the stake, but her daughter Helen (Barbara Steele) knows the real reason for her execution lies in Count Franz Humboldt's (George Ardisson) sexual desire for her mother. After confronting the count, he kills Helen, forcing Adele's younger daughter Lisabeth to marry the count's worthless son Kurt. A horrible plague sweeps the land, and during a thunderstorm, a mysterious woman named Mary appears, strongly resembling Helen, beginning to avenge Adele's death.