Synopsis: When Countess Erzsebet Bathory (Lucia Bose) is accidentally splattered with some blood drops of one of her nubile maidservants, the Countess finds out that the blood can preserve her skin young and beautiful. Compelled to kill innocent young girls to use their blood, the Countess is helped by her husband Karl (Espartaco Santoni), who fakes his own death and pretends to be a vampire to fool the superstitious villagers about the source of the exsanguinations. In the meantime Karl finds himself attracted to Marina (Ewa Aulin), the young daughter of a local innkeeper, perhaps another victim for the Countess.