The Joker

After a murder in the drug milieu, Jan Bogdan from the Hamburg homicide squad is not only on the hunt for the perpetrator, the killer Dr. Proper, but also wants to uncover the entire organization and its clients. Even when he survives a bomb attack with severe injuries and remains paraplegic, he continues to pursue his trail with determination. But the organization's web is far-reaching and carefully woven. And it reaches all the way into the police apparatus ...