In Berchtesgaden, a wolf is on the prowl. On the legendary Untersberg, where the emperor sleeps and the devil resides, it is said to roam the forests once again. Nature conservationists rejoice, while the alpine farmers protest. Then, the gruesomely mutilated body of a young woman is discovered, and the press rushes to cover the case. But is there really a wolf lurking in the misty mountain forest, or something much more sinister? In the search for the truth, national park ranger Veit Brenner comes dangerously close to evil...