Sini is waiting for her husband to return from a trip and starts thinking about her past relationship with Jaska. She invites him to a party, where old feelings resurface. Afterwards, they go to an island they used to visit and confront their memories and the past of their relationship

Captain Routa has to teach a civil defense class to the girls at a boarding school. He accidentally wanders into the shower room and tries to get out disguised as a cleaner, but ends up in the same bed as gymnastics teacher Marjatta. Private Pöntinen, who is dating the boarding school cook, has a blast when he gets his hands on Captain Routa's uniform.

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.

Tells the story of a young couple using flashbacks.