Dr. Aitamaa is spending holiday with his family at their summer villa. He accidentally reads a letter that was meant to his wife. The letter is from another man. Aitamaa follows his wife to the city and finds out that she has a lover. Later the wife is found killed and Aitamaa becomes the prime suspect.
Evakko is a portrayal of Soviet-Finnish winter war of 1939/40 and the associated evacuations in different parts of the country. It tells the story of a Karelian family along with their whole village who were forced to leave their homes because of the war. The film has a surprisingly perky tone for the subject matter.