Summer 1948: Life in Altena in the Sauerland was tough after the long years of war. But the sisters Ulla, Gundel and Margot are now in an exuberant mood. The youngest, Ulla, turns daredevil Tommy, who has just returned from captivity, his head. She is as good as engaged to the pharmacist's son Jürgen. The shy accountant Gundel meanwhile has the numbers of her father's company, Metallwerke Wolf, in mind. She doesn't notice that Tommy's friend Benno only has eyes for her. The eldest sister Margot takes care of son Winne. Her husband Fritz has not yet returned home after the end of the war. Company boss Eduard Wolf is put under pressure by the weakened workers. The food is scarce. They are on strike, led by Tommy. There is inflation, even a factory owner's money is no longer worth anything.