An uptight all-girl school teacher Leena Kataja stumbles upon a handsome artist Pertti Rinne who paints her face on a nude portrait, much to her chagrin. She is intent on keeping the painting out of circulation by stealing it from an art gallery, but the aftermath turns out to be more complex than she anticipated, leading Leena to become involved in various misunderstandings featuring a gang of criminals, inept cops and false murder charges among other things.
Trade counselor Lillukka leaves his entire fortune to Pekka Puupää, who, thanks to cartoons and films, has become closer to him than his immediate family, who are pursuing their own interests. Pekka starts running a toy factory and hires a freckle-faced bowling boy as the company's errand boy. Widowed trade counselor Gunilla Lillukka tries to get married to Pätkä, who has been promoted to assistant director.
A lock factory worker Pertti would like to marry his girlfriend Verna, but fears they don't have enough money. His brother Martti is a member of a youth gang that is planning a robbery with three other young men. When the boys have to flee at the time of the robbery, Pertti who secretly shadowed them sees an opportunity to solve his money problem.
An architect, who has recently married a new, younger wife, tries to re-connect with his ex-wife, who is being courted by another man.
Pekka and Pätkä work as inventors. Pätkä accidentally takes a photograph of bank robbers, who begin to track down the photographer. Soma Koivu, the former secretary of the property manager Kiivas, and police officer Antero Kangas help Pekka and Pätkä catch the robbers at a film studio where Pekka is working as a stand-in for Superman.
It is a time of extreme housing shortage in Helsinki. People with room in their flats are required either to find subtenants or to lodge anyone sent by the housing commission. Abel and Jussi Siimes, two devoted haters of women, find themselves in this predicament. They need to find a subtenant quickly to avoid the possibility of the housing commission sending a woman, God forbid it, to live with them. Abel's acquaintance, an assessor, recommends his nephew Kaino as the perfect choice.
The boyish, temperamental chemistry student Elsa Kassel disapproves of her mother and sisters running after men, but when she hears that she's referred to as "ugly Elsa", she takes on a transformation. The new, charming Elsa tests her attractiveness on men and causes confusion all the way to her mother's new groom, Professor Harjula.