Pyotr Andreevich is robbed at the moment when he is riding in a taxi, putting a suitcase in the trunk. He remembers that there was a rather roomy box in the trunk… Having come to the police, Pyotr Andreevich intrigues both Artyom and Lena with his story. Trainee Vadik is particularly interested in the incident. The guys decide to conduct an investigative experiment.
 

A businessman, the owner of a chain of furniture stores, Sharkov, is kidnapped. Artyom and Mukhtar begin an investigation, but after a while the businessman returns home alive and unharmed. His wife Olga notices a number of oddities in her husband's behavior, and the office staff gets the impression that the boss is bankrupt of his own company. Artyom finds out that Sharkov had a twin brother, from whom he was separated in early childhood…