A rich widow is found dead in her apartment in Helsinki due to gas poisoning. The incident is initially thought to be an accident, but inspector Palmu notices that the murderer made a mistake, and so Palmu, Kokki and Virta begin the investigation: who had come to the apartment through the balcony door and opened the gas tap while Mrs. Skrof was asleep?
Justiina pushes Pekka and Pätkä to take painting lessons after realizing that art can be a way to earn a living. With the help of the yard children, a painting is created that wins first prize at a contemporary art exhibition. In the meantime, the men, along with their assistant Miss Kaihokielo, have been charged with art theft. After the misunderstanding is cleared up, the Puupääs use the art prize money to convert the house's bomb shelter into a children's clubroom.
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.
"Mussu" Koikkalainen, a country boy moves to town to find a job. He finds it and is even promoted to head of complaints department. But little he knows.
The everyday life of the small village is mixed when a fire breaks out the night after the party. The cooperative manager and fire manager alerts the young judge Heiki to the extinguishing work, but due to the confusion, extinguishing the fire turns out to be more complicated than expected.
Niskavuori's Aarne (Arne från Niskavuori) is a Finnish drama film from 1954. It is based on Hella Wuolijoki's play Niskavuori's Bread. In chronological order of the Niskavuori series, the film is the fourth. Aarne has married Ilona and left the house in Niskavuori, which he hosts, where his former wife Martta still lives, while the old mistress is holding the reins. Aarne and Ilona live in Helsinki, but Aarne has not been able to completely break away from Niskavuori, but keeps secretly in touch with the headmaster and gives instructions on the farm management.
Eager young radio reporter Teräsvuori stages a one-man burglary into the Helsinki Art Museum, recorded on tape for a later broadcast by his friend Laakso. Things go awry when a gang of real criminals overhear their plans and book their heist to coincide. Teräsvuori gets caught but escapes from police custody to start his private investigations together with female radio colleague Eila.
A romantic comedy about a writer coming back to Finland is bored with the High Society life and starts a modeling job for a young and beautiful painter Ilona. Dressed as a vagabond, he soon starts to please Ilona and her many lady friends as shows quick learning skills and soon shows great knowledge of history, art, and literature.
Wager is Count Mauritz Armborg, the young master of the estate. Linnanheimo plays Katariina (Catherine) the nanny to Mauritz's nieces and nephews. The two fall in love and decide to escape to Italy via Denmark where they have planned to get married. There are always complications because Mauritz's grandmother doesn't want him to marry below him - she has decided that Mauritz is to marry the Swedish beauty, Ingeborg Liliecrona.