The corpses of two young people who came to work from Lugansk are found in the apartment. Jeannette discovers a potent poison in a vodka bottle on the table, and Artyom finds an ancient gold coin on the floor. A well-known archaeologist sheds light on the case. He tells Lena Brusnikina about the treasure of the merchant Voskoboinikov, hidden in the Moscow region at the beginning of the twentieth century. Obviously, the guys stumbled upon this treasure, which other people were interested in...

A jewelry company was robbed. The bandits took two hundred thousand dollars and diamonds, having previously disabled the director of the company and the supplier with a taser. At the same time, the operatives do not find any evidence, even Mukhtar cannot pick up the trail. Only in the bathroom does the dog find a towel with strange stains. Expert Innokenty finds traces of foundation and hair bristles on it. After examining the personal files of the guards, the operatives find out that one of them, Semyon, once studied at a theater school.