109: The Brutal Unsolved Hinterkaifeck Murders

Attic floorboards creaked in the night. Disembodied voices came through the thick farmhouse walls. It wasn't long before the Gruber family at Hinterkaifeck farm realized someone or something had infested their house. By the time they figured out who, or what, it was, blood had already been spilled. And the only surviving eye-witness was the family dog.