Composer and program director Harri forms a quartet, recruiting Apon, Teika, Kauko, and Olli as members. Based on an idea from Olli's beloved Raija, the ensemble is named the Kipparikvartetti.

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.

Pekka Puupää and Pätkä, who return to Helsinki from an unsuccessful variety show tour, are forced into refresher training, where they are trained as frogmen. During the diving exercises, the friends encounter the mermaid Helmi, whom they help into the bathtub at home, to Justiina's shock. The friends, who have become civilians, eventually end up on a plane bound for Suez, being cornered by UN soldiers.

A TV reporter is murdered when he is eavesdropping on a secret Finnish-Soviet conference. The National Broadcasting Corporation enlists the help of police lieutenant Palmu, who comes out of retirement for this case. However, some have their doubts about the loyalities of Palmu, seeing that he was spotted in a diplomatic soiree in Moscow just a few weeks before the murder.

Sisters Irma and Airi Ranna's café Iltatähti has run into financial trouble. Touring musicians Heikki and Jussi end up as tenants in the same boarding house where the siblings and the poetic accountant live. Since the landlady does not allow music in her nursing home, the musicians practice at Iltatähti and revolutionize the life of the cafe.

Schoolboy Klaus is convicted of theft and sent to prison. At his release Klaus feels that his life has changed a lot. Despite all his hardship and difficulties he keeps up his studies under the supervision of the grim Master Kahari.

Traveler Severi travels to Helsinki to enjoy some culture, where he meets Sinikka and Simo, who run a buying and selling business. At a customs auction, he buys a painting that businessman Kehveli and his assistants also have their eyes on.

Pirkko Mannola and Esko Salminen play young pop stars of the same name, who develop a secret romance that is kept hidden from the other musicians in the pop orchestra. Between musical scenes, Pirkko introduces Esko to Ville Salminen, Toivo Kärki, and Reino Helismaa, among others, and gets him a spot in a big pop music show.

A triangular drama set in the world of theater.