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 Sirgurd is engaged to kill the monster. Written by Andreas Pieper piepean@uni-muenster.de

Paul Naschy plays a hunchback with below average intelligence who works at the morgue. He is in love with a sickly girl who happens to be the only person who is kind to him. Each day he brings her flowers until the day she dies.