Commissioner Gero von Aha discovers a hanging skeleton in a forest near Wesel - without hands. Chief Commissioner Karin Krafft admires an elaborate mobile in Xanten made from finds along the Rhine bank - a hollow human hand resonates in the wooden and animal bone wind chime. A million euros are generously gifted from an unknown source, leading to comical chaos. The K 1 and its most mysterious case - the investigators pursue the secret of a legacy throughout the entire Lower Rhine region from Duisburg to Emmerich, from Moers and Krefeld to Kleve.