Because detectives Jäger and Kraft botched an unauthorized operation, they now have to face the consequences: they are demoted and placed under the command of their colleague Hoffmann. In their private lives, too, things are not as they should be. While Jäger is kept busy at night by his young children, Lola and Andreas' relationship is in crisis. The Calw investigators are really not having an easy time of it at the moment. And then there's their new case, which seems to be a tough one. When businessman Till Ritter is found dead, everything seems clear at first: suicide. But the matter becomes more complicated. Why was Ritter's daughter kidnapped? And what is his son Philip hiding? And what does the body found in a nearby lake have to do with it? The three detectives and their new colleague still have a lot of work ahead of them, because there is still a long way to go before all the questions are answered and the case can be closed...