Detectives investigate a series of murders in which petite women become victims. Igor Toropov - the real "Don Juan" - has four mistresses. Suddenly, all four girls declare their desire to take the relationship "out of the underground" - but this could seriously interfere with Toropov's plans.

A young couple, Yana and Oleg, decide to quit drugs and start a new life, especially since a child will soon appear in the family. But suddenly the girl is killed. Who wanted to interfere with the happiness of a young couple? Perhaps Oleg's parents did not approve of the choice of their son.