Das Keltengrab

S15, E22: In the tranquil village of Hochdorf, a chilling crime shocks the community when an employee of the Monument Office is found dead atop a Celtic burial mound. Witnesses recall seeing members of a neo-Druid group near the site that night. Suspicion quickly falls on their leader, Mike Hähnle, a former convict known as the group’s High Priest. As detectives investigate, ancient rituals intertwine with modern motives, revealing a haunting mystery where history and danger meet beneath the shadows of the past.