Joseph Feinlein, Head of Unit at the Department of Health, is found dead in his office. He left a suicide note, everything points to suicide. But when the inspectors Till Ritter (Dominic Raacke) and Felix Stark (Boris Aljinovic) deliver the letter to the seriously ill widow Rebekka (Corinna Kirchhoff), the devout Catholic doubts its authenticity. The autopsy reveals that the government official died of poison. Ritter and Stark learn that Feinlein had ordered a bicycle courier shortly before his death. But they can't question him - he's in a coma after a serious accident.
Is it a coincidence that the courier bag with Feinlein's shipment has since disappeared?While Ritter is talking to dispatcher Marielle (Jule Böwe), his colleague Stark is trying to get more details from the dead man's employee, Julia Jansen (Anja Kling). In addition, Ritter and Stark meet the resolute Maria Abt (Tina Engel). She is not on good terms with her dead brother-in-law and gives the inspectors statements from an account that shows significant cash deposits. When the courier Mischka (Bruno Montani) wakes up from the coma, there is a new lead. He remembers who the addressee of the message from the ministry was: a journalist named Hendrik Koch (Jürgen Tarrach), who has been researching corrupt ministry officials for a long time...