Antti and Ville arrive in Stockholm to seek adventure, to entertain, to meet girls and to live in a new youth culture. However, when they get off the ship, they get into the wrong track and come across prostitution and drug crime.

Åsa-Nisse is visited by cousin Doris from the United States. Nisse, Klabbarparn and Doris will travel to Stockholm, but Nisse and Klabbarparn lose track of Doris, who get into a hands of a Casanova. Nisse and Klabbarparn instead ends up at the Nordic Museum, where Åsa-Nisse turns out to have unexpected qualities in the art of imitating a mannequin. After that they had found each other is Doris robbed and it leads to a wild brawl that it sparkles and sputters on.

Gunnar and Ulf are neighbors. They are both lured into a life of crime.

Young Anna Rydell comes to a boarding-school for girls. She is very shy and the other girls don't really try to get to know her. The French teacher Martin Andreasson, who Anna falls in love with, lives at the boarding-school with his wheel chair-bound wife. Her handicap has made her depressed and Martin finds it hard to love her like he used to do.

Gus and Holger, two students in Uppsala, have problems with the rent. They are waiting for money from their uncle, but instead of money they are reached by the news that he has gone bankrupt.

There is a new English teacher in school, Miss Lind. She moves in with the Nilssons, whose son Sigge prefers playing with his trumpet than to study German. Miss Lind convinces him how important his studies are. But Sanna, a girl in Sigge's class becomes jealous and angry when Sigge prefers his homework instead of her. Plot by Mattias Thuresson.