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.

• Suomen Filmiteollisuus
• Tauno Palo
• Gunvor Sandkvist
• Helen Elde
• Matti Oravisto
• Risto Mäkelä
• Uuno Montonen
• Anton Soini
• Paavo Hukkinen