Story Line
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.
“You'll Never Sleep Alone Again!”
Top Cast

Tony Kendall
Sigurd

Helga Liné
Lorelei

Silvia Tortosa
Elke Ackerman
Josefina Jartin
Boarding School Principal

Loreta Tovar
Martha (as Lolita Tovar)

José Thelman
Carlo Donati (as Joseph Thelman)
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Rating
5.1/ 10
Release Date
1973-06-15
Runtime
1h 25m
Genres
Horror
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User Reviews (1)

Wuchak
7/10
•12/17/2025**_A siren lurking in the Rhine turns into a murderous beast_**
This was helmed by the creator of the “Blind Dead” tetralogy, Amando de Ossorio, so if you’re familiar with those flicks, it’s cut from the same cloth, just better IMHO. It comes acro...






