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.
Tony Kendall
Helga Liné
Silvia Tortosa
Josefina Jartin
Loreta Tovar
José Thelman
Luis Induni
Francisco Nieto
Betsabé Ruiz
Luis Barboo
Ángel Menéndez
Sergio Mendizábal
Marisol Delgado
Victoria Hernández
María Vidal