Village policeman Husmann bids farewell to his boss Eggers on his well-deserved retirement. Tough Inspector Posch is put in temporary charge of the small police station in Eggeborg. Shortly afterwards, the first case arises: an unknown person is smearing cows with aggressive slogans at night. Stefanie Posch and local policeman Thies Husmann take over the investigation, which quickly leads them from the cows to a completely different, much more dubious mystery.