It was supposed to be a relaxing day off for Chief Inspector Steffen Horndeich at the swimming lake. But then a corpse suddenly appears on the water's surface right in front of him. Together with his colleague Margot Hesgart, Horndeich begins to investigate. Several people have motives for such a crime - and initially, they also have alibis. Then Horndeich and his colleague discover parallels to two other murder cases - all victims were inflicted with wounds only after their deaths. And all three victims studied in Darmstadt at the same time. What lies behind this strange pattern? A gripping crime novel by Spiegel bestselling author Michael Kibler!.