An unsolved murder case in the Tyrolean mountains keeps Chief Inspector Moritz Eisner (Harald Krassnitzer) busy. A year ago, a pregnant woman was strangled here. The husband of the murdered woman is now threatening to close his glass factory if the death is not cleared up by the anniversary. A large part of the population would lose their jobs as a result. The suspect is the "devil from the mountain", the eccentric painter and womanizer Georg Hochreiter.