A committee of judges is called to Bremen to rule on a controversial deepening of the Weser. A sex video of one of Germany's top judges, Konrad Bauser (Christoph M. Ohrt), appears. The underage Mel (Jella Haase) and her boyfriend Ole (Sven Gielnik) blackmail him with it. Shortly thereafter, Ole is dead. Inga Lürsen (Sabine Postel) and Stedefreund (Oliver Mommsen) take up the investigation and it doesn't take long for Stedefreund to find Mel. The girl tells Lürsen and Stedefreund about Konrad Bauser, who, however, has an alibi. At the same time, Lürsen and Stedefreund are following another lead: could it be that Bauser was threatened not only by Mel and Ole but also from a completely different side?