Master butcher Külz from Hanover meets the young and beautiful Irene Trübner, private secretary to the wealthy art collector Steinhövel, in Copenhagen. She asks him to help her transport a miniature recently acquired by her employer at an auction in Copenhagen to Hanover. The newspaper has just reported on the theft of some of the art objects sold at the same auction and she is afraid of being robbed as well. The two agree that Külz should discreetly give her the miniature at the station the next morning in order to deceive any robbers. However, Miss Irene does not give Mr. Külz the original, but a copy. During the train journey, the miniature is stolen from Mr. Külz...