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.

A dangerous gangster called the Lizard escaped from prison. He steals chickens and spits on old ladies. There's only one man who can catch him: the commissioner Roy Schneider!