The musical comedy tells the story of two friends about Usko and Toivo, both of whom happen to have same surname, Lahtinen.

Eemeli, a lazy farm boy, is sent out into the world by his parents due to poor potato harvest forecasts. On his way to the logging camp, he meets Tommi, a man from Helsinki who sells razors and is headed to the same destination. At the logging camp, the loggers and Eemeli perform several musical numbers and flee from Isabella, the cook, who is hungry for men.

The unlucky layabout Isarkar Keturi brings a criminal gang to heel with the help of his assistant Mikael. He frees Irma, the daughter of mining magnate Tömstet, from captivity and a forced marriage to Kurt. Irma achieves her dream of becoming a pop star, with Isaskar's help.

Eemeli leaves the countryside for Helsinki to obtain tax money for the bailiff who is pursuing him. In the capital, he becomes the assistant driver of Andersson, a cab driver. One night while driving, Eemeli meets Vesa and his little sister Jaana, whom Andersson and his granddaughter Katriina take into their family as foster children.

A film group is making movie in the little town. Writer Pentti Töysä interrupts film group's press conference and claims that script is written by him and it is based on true story. Töysä also says that he has written a new ending to the movie and that it reveals an old murder. Not everyone is happy about the new twist.