Summary The businessman Hannes Burchardt is found dead in the cabin of his yacht Constanza. Everything points to a carbon monoxide accident. But closer investigations reveal that he was murdered with dry ice. At first, all the evidence points to his wife Zola as the perpetrator, who wanted to separate and is now profiting from her husband's death. When Nele Fehrenbach's team questions Zola, Zola's lover, the organic farmer Michael Jungbluth, gets involved. He is convinced that both the murder and the investigation are part of a plot against Zola and him. The dead man is deeply involved in the local political network and has had shady dealings with the local political bigwig Götz Eberlein. When the police don't let up, a scandal ensues. Jungbluth and Zola manage to hijack a police boat to force Eberlein and his hard-working office manager Garber to confess. The police have to stop the raging Jungbluth. Thanks to Jakob's research on Burchardt's stolen laptop, it turns out that Burchardt actually put pressure on Eberlein with compromising information. Could the politician really have committed murder to protect himself from the discovery of an unpleasant truth? Meanwhile, Nele also has to support her son Niklas, who has fallen unhappily in love with an older girl. Nele is distraught, Mechthild shows a lot of understanding and Jakob can and must ultimately help.

• Crime