The funny clown Bratislav Metulskie is found dead in circus "Apollo". The retired commissioner 00 Schneider is asked to assume control of the case. Schneider and his aged sidekick Körschgen investigate to find the murderer.

The dreaded Doc Snyder returns home after 30 years. After his long ride through the prairies of the wild west, his laundry is extremely dirty, and who could wash it better than his unshaven mommy? But first she sends him to the prison, from which he is to free his brother Hank, because otherwise he will be hanged. When that's done, they both spontaneously decide to rob a bank, which goes completely wrong. Before Doc Snyder's eyes, his beloved brother is shot by his intimate enemy, the Nose Man. Snyder initially manages to escape, but the Nose Man takes up the pursuit, and from then on many innocent people have to die - including Snyder's mother...