After many mishaps, City Engineer Volmari arrives at the masquerade ball wearing a suit of knight's armor from the museum. He dances with his blind date crush Raili until Bertha, the black singer from the circus, pulls him away and a new whirlwind of misunderstandings begins.

Mauno, an orphan boy, moves from the countryside to Tampere to live with his foster parents, Iida and Eero, who support him in his music studies. As an adult, Mauno travels to Helsinki to search for Helena, a Karelian girl he rescued during the war, who is studying violin. At first, the girl does not recognize Mauno, but a joint concert changes the situation.

The film tells the story of an orphaned Anu and carpenter Mikko trying to make a living in a small Karelian village in the early 1930s.

The Finnish coast guard battles the bootleggers who smuggle booze across the Gulf of Finland during the prohibition law.