Erkki, a journalist, suffers from epilepsy and agrees to be sterilized in order to marry his fiancée Helena. Unhappy about his infertility, Erkki begins to drink more and more, and eventually Helena returns to Helsinki to continue her studies. There she meets Associate Professor Sysikorpi, who falls hopelessly in love with her.

A young heiress settles into a holiday hotel in search of a suitable husband. There are enough groom candidates, some gentlemen, and some cheaters. All that is certain is that the misfortunes will not end.

Tuulikki Tenho, who lied about her marital status to get a job as a secretary at a timber company, has to pretend that she is married to Yrjö Aaltonen, an architect she has just met. A romance begins to blossom between the couple, but it is revealed that Yrjö is already engaged to Virva Lieki, a dancer returning to Finland from abroad.

In mid-19th century Finland, Klaus von Rapp marries young Anette Erling. The marriage is full of happiness until Klaus’s deception is exposed and changes everything with catastrophic consequences.

In the late 19th century at Längelmäki two men kill a mailman and rob all the money he carried. Based on actual events.

Lasse Pöysti's directorial debut film. And Helena Plays On (1951) is based on Aino Räsänen's second novel of the same name in the Helena series. When the Winter War breaks out, Arttu (Jussi Jurkka), the son of Helena (Irma Seikkula) and Jari Junkkeri (Erkki Viljos), go to the front. Arttu proposes to his girlfriend Elina (Leena Häkinen), but the world events come in between. When he is not heard of at the end of the war, the relatives begin to believe that Arttu is dead - everybody else but not Helena.

Helena Kara plays a dual role in this spectacularly portrayed adventure story where a real Countess and a false one cause misunderstandings. The film won Jussi Awards for filming and staging.

The S/S Vellamo heads to Alexandria with Kaarina, the daughter of the ship's owner Hallerman, on board. As Kaarina trades places with the family's housekeeper Marja, first mate Yrjö takes a liking to Marja whom he believes to be miss Hallerman. Meanwhile Kaarina, pretending to be a member of the cleaning staff, starts getting close with lower ranking officer Kalle Aaltonen.

A man mixed up in suspicious activity is murdered in the studio of photographer Ilmari Lavio. At the same time a charming woman has entered the studio, but Lavio does not want to report her to the police. The photographer begins to follow the beauty who calls herself Soile Mäntymaa and through her traces a league of spies.

Lieutenant Ville Somero investigates a sabotage at a fortress site on the Karelian Isthmus in the summer of 1939. His suspicions are directed at the guests of a nearby guesthouse. Aarno Teräs an engineer leading the fortification site, and his bride Birgit Lahti get into trouble because of a band of spies and dancer Veronica Sorrento.