Commissioner Brockmann's criminal investigation is prompted by the body found by the cleaner Erna Pieper, which turns out to be very mobile! She disappears and reappears, causing considerable confusion among the survivors. The inspector and the cleaner get into a fierce competition to solve the case. The expert and the naively clever dilettante engage in a veritable battle of applied detective story logic. Which professionally proud expert likes it when a "little woman from the street" keeps messing up his work with her uneducated, "common sense" - and is successful at the same time...

Otto Sanftleben has had enough of the nudity on display everywhere in the big city of Hamburg. So he returns to the Lüneburg Heath. But there are now naked people there too - and his filmmaker colleague is also very interested in capturing the naked girls with his camera...

The nightclub "Zum Klabautermann" in St. Pauli is a cheerful place where people like to meet. Every evening, when the two bargemen wrap the guests in sailor's yarn as supposed sailors on a long voyage and Lotti, known as "Das laufende Glück", knits the clientele, things get very lively. Can landlady Hermine prevent a competitor from poaching her "artistic" staff...?

Fisherman Hannes Högermann and his nephew Klaus have "salvaged" seventeen sacks of coffee from a stranded ship at night and stowed them in his cellar. Hermann Achner, who works for a coffee broker, is called in to get rid of the loot at a reasonable price. Instead of Hermann Achner, however, the owner of the ship appears first, who is mistaken by Hannes Högermann for the accomplice and learns to his astonishment about the hidden loot. But because the owner of the "Söbenteihn Sack Kaffee" has his eye on the fisherman's daughter, he puts on a good face and lets the beach bailiff believe that the coffee has been properly recovered, so that Hannes Högermann is at least left with the salvage wages. But he has to pay a penalty...