Based on

Movies like Beule oder Wie man einen Tresor knackt (1987)

Heinz Borbet, also known as "Beule" because of his dented car, finds a red safe hidden in the dung heap of an allotment garden: the two thieves Bruno and Fred have stored it there for the time being because they couldn't get the safe open. The safe is almost impossible to crack. Heinz is not the only one to feel this in the episode, who is delighted with his supposed, unexpected wealth, but also around a dozen other candidates. Then the police get involved in the form of Inspector Fleischhauer ...