It's summertime. The students Allan and Erik returns to their home town. 19-year old Allan is in love with 17-year old Anna-Lena. She rejects his clumsy attempts of telling her, but that's because she is uncertain of her own feelings. The Norwegian singer Lydia Hennert has an accident with her car and she is slightly injured. Allan's father is a doctor and Lydia spends a few days with them. Allan falls in love with her instead, she is a "real" woman and not a girl. But this makes Anna-Lena jealous.

The rich young man Teddy Anker invests his money in the theater at the beginning of the 1920s. Whatever he does becomes a success. He falls in love with a dancer, Karin. He decides to put up a show with Karin as the leading lady, but for the first time one of his shows becomes an economic disaster.

The burglar Karl Kilian Ledig tries to get his somewhat reluctant son Carl Gustaf interested in his "profession". He bring him along one evening to the sculpture Ulla-Carin von Knaake's house to break in and steal from her safe. Complications arise when Ulla-Carin and some of her friends unexpectedly come home and she imagines that Carl Gustaf is a model she has hired from a model agency.