The film tells the love story of two young couples. According to their social ranks, construction worker Edy is dating employee Siegi, while medical student Dieter is dating art school student Sonja. Rather unintentionally, they exchange partners. During a carnival ball, Dieter makes out with Siegi because he falls for her her fresh and happy girlish manner. Sonja coolly observes this game and sees this intermezzo as a test for their relationship. While Siegi and Dieter vacation at the sea, Sonja falls in love with Edy. Now the die seems to be cast for new constellations. But when both couples stand in front of the registrar’s office, they finally come to their senses.
Little Nelli is a clever and cunning child. As her parents are both working, her grandmother has to care for her. But her grandmother is no match to Nelly. Out on the street, Nelli also calls the tune and becomes the kids’ favourite with her brash pranks. But when Nelli enters day nursery, the situation changes completely. Suddenly, Nelli is no longer at the centre of attention and starts to upset the group with her aggressive stubbornness and to revolt against the rules.
East Germany's contribution to the 1957 Cannes Film Festival was the wartime melodrama Betrogen bis zum Juengsten Tag. Had the film been released in the U.S., the title would probably have translated to Duped Till the Last. The film condemns the Nazi mindset by concentrating on a particularly odious cover-up. When his son is involved in the accidental killing of a girl, a Gestapo general pulls strings to save the boy from prosecution. The general manages to pin the blame for the killing on a group of Russians, whereupon he gives the men under his command carte blanche to round up and execute as many innocent Russians as they wish. This act of brutality is contrasted with the pangs of guilt suffered by the son and his co-conspirators.
