A young girl gets to break free from her suffocating and overprotective father but this father who was close to the Nazis and even closer to Adolf Hitler won't allow it. In a fit of rage, he drowns her and then buries her in the grounds of his country home. He lies to the police and his worried wife claiming he knows nothing about her whereabouts. For reasons unknown, his wife then murders him by poisoning him. Years later, four young women travel to their professor's country home and discover its malevolent past.