Poor high school students Toivo Päiviö and Unto Uramo solve their housing problems by enrolling in Sofia Andersson's boarding school. Toivo falls in love with Mrs. Andersson's deceased husband's niece, Aune, and begins to compete for her attention with opera singer Reino "Toreadoor" Kiljunen.
Young married couple, Martti and Ulla, are spending a carefree weekend at their Rauhanlehto villa. Their peace is disrupted when the in-laws and Ulla's sister Alli, come to visit.
Adalbert "Mussu" Koikkalainen inherits 9,000 marks from his uncle. To buy a milk shop, Koikkalainen needs another thousand marks and work experience, so he applies for a job at the department store Sampo, where he is hired as a scapegoat to receive customer complaints. The saleswoman Irja Salo, who is under threat of dismissal, falls in love with the general manager Vaara, whom she thinks is a traveling salesman.
Medical student Antti Ahonen, who is fighting tuberculosis, finds himself in the middle of a love triangle with his friend Heikki Huhtamäki and his crush Helmi Hirvinen.
Arno is a painter having an idyllic summer romance with dancer Helja on the picturesque coast of North Estonia when an unexpected visitor appears – a well-off young woman Margot. She tempts Arno to join her to have a good time at a resort town. Helja stays where she is and starts missing Arno. Northern summer is short – but long enough in order to realize one's feelings.