Sisters Pirkko and Brita travel to Aulango together with their landlady Sigrid to look for wealthy spouses. At the same time brothers Erkki and Olavi hope to find girls who would love them for their own sake and not for their money.

Paavo and Eeva, two young people who have moved from the countryside to the city, meet a gang led by Kalle, who spend their time loitering and committing petty crimes. A fateful evening on a motorboat irrevocably changes the young people's lives.