Two bodies are found in a run-down house on the outskirts of Nuremberg. A 58-year-old Libyan man and his sister were both brutally beaten to death with a rebar. They came to Germany 15 years ago, were fully integrated and have been lying in their decomposed blood for days. The brutality of the act is staggering. Ahmad, the victim's adored and gifted foster son, has disappeared. Was he perhaps a witness? Or perpetrator? The pressure mounts quickly, the public demands quick explanations. Felix Voss and Paula Ringelhahn lead the exhausting investigation. But what are they dealing with? Family tragedy, robbery, murder, a bloody act? Investigations in the right-wing scene remain without reference.
Shortly thereafter, a colleague from the fraud department dies unexpectedly while driving in the car from a fatal drug interaction. He leaves his wife and two children behind. For Paula, this news is a disaster. The dead man, Frank Leitner, was a very close friend. Shortly before the double murder he had tried in vain to reach her. A piece of evidence found at the crime scene links the murder of the two siblings and their dead colleagues. But what does Frank Leitner have to do with the horrible act? Why did he die shortly afterwards? A case that pushes Paula Ringelhahn to her limits and which she would not have been able to handle without her colleague Voss