ThelegendaryLoreleyhasbeenlivingforcenturiesinagrottobeneaththeriverRheininGermany.Everynightwhenthemoonisfull,sheturnsintoareptile-likecreaturecravingforhumanblood.Whenonegirlafteranotherofanearbyboardingschooliskilledbyher,ahunternamedSirgurdisengagedtokillthemonster