During the collectivization of the 1930s a red army soldier is troubled by the affection he feels for the young wife of a "class enemy."
The corpse of old Bobo Nazir was found in a mountain village after a fire. Major Kasymov in the basement of a burned-out house discovers a chest with jewelry that belonged to the Basmach Rakhimbek. The absence of a priceless battle belt points to the cause of the crime. The detectives go to the jewelry dealers to capture the criminals.
