A water corpse from Lake Lech leads Gerhard Weinzirl and Evi Strassgütl to Auerberg and right into a world of serious archaeologists and eccentric oddballs. What happened at the foot of that mystical mountain, which esotericists and some confused Celtic fanatics see as a sanctuary? Did the man have to die because he discovered a scientific sensation? Several wheat beers later, Gerhard, Evi, Jo, and Baier believe they are getting closer to the answers to these questions, but then everything turns out quite differently.