Set in early 16th century Finland, a knight Olavi Gideoninpoika meets Mirjam Raakelintytär and falls in love. Mirjami hides in a monastery disguised as a choir boy, but is revealed by a monk Rasmus, who also desires her, and is put on trial.
Three brothers, all with their own problems that could be solved by money, try to come up with a plan to get they share of their uncle's fortune. Then a murder takes place and it is the job of a detective to find out which one of the brothers did it.
