Dr. Aitamaa is spending holiday with his family at their summer villa. He accidentally reads a letter that was meant to his wife. The letter is from another man. Aitamaa follows his wife to the city and finds out that she has a lover. Later the wife is found killed and Aitamaa becomes the prime suspect.

An apparent suicide of a successful architect prompts an investigation into his death. A young man investigating can't believe that his well-respected boss would take his own life until he discovers that the man had a loveless marriage, another woman on the side, and a general feeling of malaise – a condition caused by the fact that he very nearly sold himself out to the lure of big money.

Bridge engineer Akseli Jaatinen arrives to stir up the lives of the inhabitants of a small Finnish village. Jaatinen is well-liked at the bridge construction site, but he quickly finds himself clashing against the local decision-makers. The bridge engineer is also popular with the ladies and, being a man of energy, he manages to take care of several of his admirers at once.

After her mother's death, Irja, an evacuee girl, finds herself in a poor financial situation. Working as a housekeeper for her former teacher on a starvation wage, her situation improves when she is hired as a janitor at a secondary school. Despite the opposition of Principal Kuusi, she decides to take the matriculation examination and, in order to improve her writing skills, responds to a correspondence advertisement placed by the mysterious Master Ahtojää.

Ilona, an orphan from the cruel Paksula family, ends up in Helsinki at a children's home for immigrants and from there becomes a foster daughter in the Orpana family, where she begins to sort out the relationship between her war-disabled stepbrother Pentti and his girlfriend Irene.

Colonel Carolus von Haestman, presumed dead by his family, awakens from his deathbed and sets out to find his childhood sweetheart, Amelie. His children and grandchildren, in turn, set out to find the runaway lovers. In the end, the funeral turns into a wedding and honeymoon.

For six hundred years Sweden had controlled most of Finland until the war with Russia that ended in 1809, when Finland became a Grand Duchy of the Russian Czar. This period drama is set during that early 19th-century war and focuses on one of its heroes, Sven Tuuva. Sven is a decent yet not too brilliant soldier, and his exploits are partly balanced here by the charms of a compatriot.

At Justiina's insistence, Pekka and Pätkä are looking for work again and end up starting a detective agency. The first assignment takes the duo on a cruise on Lake Saimaa. Traveling on the same ship are representative Johannes Kulo and his daughter Maija, as well as the lumberjack Jussi, who gets caught up in the duo's misadventures.

Pekka Puupää and Pätkä involuntarily end up in Suez as peacekeepers. After saving the Caliph's daughter Suleiman from kidnappers on two occasions, the Caliph magically reunites the friends with Justiina.

After returning home from being a prisoner of war Viktor gets a job from his friend Rolf with whom he had served. The men trust each other until Viktor meets Rolf’s wife Astrid.