Mauritius Halbermann, nicknamed "Mauts", works as an advertising manager for Gravo-Druck, a state-owned print company. Mauts, a man obsessed with his work, incessantly percolates with marvelous ideas - and now that he has once again come up with another brilliant idea, he naturally wants to present his proposal to his boss. As it happens, his supervisor along with his entire family and some of Mauts's colleagues - including Lore who Mauts secretly fancies - have gone on a holiday trip.
After their successful May party, now the Lehmann family want to throw a New Year's Eve part with punch. Wilhelm's sons Franz and Paul are brigade leaders at a chemical factory. One of their brigades consists largely of fanatics of high culture, while the other consists of sports fanatics. But the rival brigades must work together in order to throw a successful New Year's Eve party for the factory, since the occasion requires both elements: sports and culture.
It is the 65th birthday of Wilhelm Lehmann, foreman of a chemical company. All members of the large family are expected. Preparations are also being made in the company: Wilhelm is to be awarded the »Labor banner« and, as every year, the sons are responsible for the may bowl. But instead of family members, telegrams with rejections flutter into the house.
Actually, the Düsseldorf musician and composer Peter Weselin only wanted to spend his placid vacation with his uncle in the Vogtland village of Klingenthal. But in the city famous for its manufacture of musical instruments, the annual music festival is about to start. For the festival, the accordion factory asks Peter for a large composition for the symphonic orchestra. Furthermore, cute Anna asks him to write a pop song for her youth dance band. Thus, Peter finds no rest during his vacation.
Both the King and his son have been deposed by popular demand. The now Prinz of Arkadia certainly enjoys his new role, which without much changing his lifestyle leaves him free to concentrate on his main interest -women. Including an actress who once wrote a mocking song about him -a song that he likes to sing.
