A man falls dead from his car in the middle of rush hour traffic on a busy thoroughfare in Saarbrücken and causes a traffic jam. The skill and speed of coroner Dr. It is thanks to Rhea Singh (Lale Yavas) that this mysterious incident is not filed as a sudden cardiac death. In the second "new" SR crime scene, "The Dead Man from the Roadside" puzzles Chief Inspector Franz Kappl (Maximilian Brückner) and his team in the Homicide Squad. The clarification of the sudden death of Kurt Nagel, a well-paid mathematician in the Saarbrücken "Institute for Process Engineering", demands all their skills from Franz Kappl and his colleague Stefan Deininger (Gregor Weber).
There is a lot of crackling between the two again, especially since Franz Kappl, in Deininger's eyes, is a bit too caring for his beautiful colleague Dr. Singh dedicates. The medical examiner is being terrorized by a mysterious caller. He intrudes into her private life, gains access to her apartment, and leaves disgusting "souvenirs" behind. Does this stalker have anything to do with the lunatic who apparently sets out to "work off" a death list and ends up putting Kappl & Deininger's life in danger?