Dunkle Machenschaften

A shocking discovery is made one morning in the city of Salzburg: the respected teacher Hans Müller is found dead in a wooded area by the Salzach. At first glance it appears to be an accident, but the circumstances are strange. The body is lying in a forest and a mysterious mark has been carved into the ground next to him - a circle with an arrow through the middle. The investigation initially focuses on the school: the teachers and the principal. What are they all hiding?