Murder in the social housing estate: Marco Steinbrück from the Cologne youth welfare office was killed and a four-year-old girl disappeared without a trace. The social worker actually wanted to put little Clara in a home. Was it an act of desperation on the part of the parents? At the scene of the crime, inspectors Max Ballauf and Freddy Schenk meet Stefanie Karstmann, who is visibly drunk and has just returned from a night of drinking. The very young mother had often left her little daughter alone in the run-down apartment. For her, the case is clear: MichaelIt must have been Donker, the child's father. After all, he had kidnapped Clara before. The girl and her two young parents are no strangers to the youth welfare office, as the inspectors find out from the head of the youth welfare office, Bernd Kampnagel, and his deputy, Matthias Hellwig.
During their investigations they also come across Tanja and Axel Küppers. The couple offers foster children a new home on their lovingly renovated farm on the outskirts of town. Why had you recently declined to admit Clara Karstmann as an emergency?