It turns out that in the Chichagovs' house, their daughter's nanny was a certain Arina Ignatova, who used to work in a strip club and was the lover of the deceased's husband. Neupokoeva calls the nanny for questioning as the main suspect. In addition, Zoya learns that Chichagov's first wife Rita also died young. Such a coincidence seems strange to Neupokoeva. Now she needs to find a way to exhume Rita's body.

At the landfill, workers discover the bloody corpse of a man with a terrifying detail - a smiley face carved on the body. Before his death, he was tortured and stabbed multiple times in such a way that he did not die for as long as possible. Upon examination of the body, Neupokoeva determines that the victim was a very wealthy man.

Kositov, a well-known businessman in the city, turns out to be killed, which gives the case greater resonance. Zoya finds out that the businessman was a witness in the case of the murder of a young woman Streletskaya. She was found dead at a campsite nine years ago. The killer also carved a smiley face on Streletskaya's body. Only if Kostov's smiley face was sad, then hers was cheerful. What do these scary marks mean?