The 1800s: scholarly Karl Schiller believes he’s found the ring of the Nibelungen, which holds great power. It’s at Castle Dracula. His twin, Franz, a gambler, asks if vampires frighten…

A woman, who witnessed her father kill himself as a child, invites several friends to her husband’s secluded castle. Unbeknownst to them, she has a sinister motive for the invitation.