Boring office worker Magda Munter is having a hard time seducing her boss' son until a false rumour starts spreading about her having had an affair with Frank Sinatra in her youth.
Three friends, Robban, Alexander and Kim has just left the compulsory school, and now they consider themselves grown-up and mature, being 16 years old. During the summer holiday they also get a bit of experience of the world: Robban becomes a full-time drug addict, Alexander plays in a rock band but leaves it and Kim is desperate to get the girl of his dreams.
When stewardess Lillemor falls in love with her jazz ballet teacher Robert, a black American man, relatives and friends take offense at their relationship.