The legendary Loreley has been living for centuries in a grotto beneath the river Rhein in Germany. Every night when the moon is full, she turns into a reptile-like creature craving for human blood. When one girl after another of a nearby boarding school is killed by her, a hunter named Sigurd is engaged to kill the monster.
In the year 1595, in a Spanish village lives the miller Diego, irresistible to the local girls. Meanwhile, a friar arrives in the village on his way to Santiago de Compostela, and is mistaken for a man sent by the Inquisition.
Countess Elizabeth Bathory conspires with her husband to acquire the blood of virgins to maintain her youth and beauty.
