Completely upset, Betti Graf (Cornelia Froboess) appears at the police headquarters with Anna Janneke (Margarita Broich) and Paul Brix (Wolfram Koch). She has been missing her neighbor Mr. Abendroth for days. Nils Engels (Jan Krauter) is particularly suspicious of having done something to him. All three live in their single-family homes in a Wendehammer. Nils is an IT specialist, and as such he has converted the house he inherited from his grandmother into a "smart house". The whole house is equipped with surveillance cameras, it is completely "clean". Everything about his "analogue" neighbors disturbs Nils from the ground up. They in turn blame Nils for the disappearance of various cats and dogs. In fact, Janneke and Brix find traces of blood in Abendroth's house. This could indicate an act of violence.
In the meantime, however, the two chief inspectors Janneke and Brix are already deeply involved in the disputes between the Wendehammer residents about the smart, digital and the lively, analogue world.