Markus Rietz finds his wife Monika beaten to death in their home. For him, this is the second stroke of fate within a short period of time: just a few days earlier, his wife had been in a car accident in which their daughter Paula was seriously injured and is now in the hospital waiting for a new liver. At first, everything points to a robbery-murder, but then it turns out that the break-in was only staged. Markus Rietz increasingly becomes the focus of the investigation...

Dietmar Kuhlmann, Andreas' fencing coach from his youth, has been murdered. Not only is the victim's widow, who also knew Andreas as a young boy, mourning his death, but so is Daniel Wesselburg. As the victim's favorite student, the 29-year-old is now on the verge of achieving every athlete's dream: qualifying for the Olympic Games. However, Dietmar Kuhlmann did not only have friends in the fencing club, as Mick and Andreas discover during their investigations...