Kolosov and his charges are investigating the case of an order stolen from the widow of a military commander. Together with his colleagues, Kotov determines the circle of suspects. Among them is a locksmith, a social worker, and a friend of the woman who works as a prop boy at the film studio. The operatives calculate that the prop had a criminal record. At the request of Captain Frolov, Raf learns all about the shadow market of numismatics, where such an award can easily be sold. As a result of the investigation, the operatives are on the trail of the real criminal.

The antique dealer is looking for the perpetrators of the theft. Since the painting he needs is kept right in the house on the banks of the Moskva River, he hires a gang on jet skis. Svetlana is in charge of the gang, and the investigation leads the operatives to the wedding agency where she legally works. To find out how robbers choose their victims among the newlyweds, Raf and Alice Kolosova decide to play the role of the bride and groom...