Loreley’s Grasp, The (1973)

aka’s: Las Garras De Lorelei/When The Screaming Stops/The Swinging Monster/Grasp Of The Lorelei

The legendary Loreley (Helga Line) 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 (Tony Kendall) is engaged to kill the monster. Also stars Silvia Tortosa. Also with Luis Barboo. (Uncut).