The SOKO Köln investigates the cathedral city with humor and often with hard work. Their cases take them into a variety of environments, from the Cologne clique to the terraced housing estates on the outskirts of the city.

Faced with staff shortages, the chief of a Cologne police department convinces two retired homicide detectives to come back into the force. As their immediate superior is a young woman, a generational cultural clash is inevitable.

Stefan Book is Pastor of the Hamburger St. Pauli Church for Schanze, Karo and Kiez. He sees it as his life's task to devote himself to the fallen and stranded. In view of the flight of the young, deportation-threatened African Adoma Fauré into his church, the chummy clergyman proves to be a serious opponent of asylum policy. The fate of the girl allows him to fight for the girl's residence permit without fear of authorities or sanctions of the municipal board. Book grants her church asylum and reaches the limit of its legal possibilities.