Sometimes it seems to parents that their child has been replaced... and two Ivanov families from the south of Russia are simply sure of this: after 16 years, namesakes will find out that their children were confused in the maternity hospital. What if your beloved son is not really your own, but your blood is being raised by strangers? And in a luxury that you never even dreamed of. And how will he accept his new, but painfully poor relatives?

A story of three estranged sisters, Irina, Olga, and Maria, who are brought back together following their father’s death to run his car service business. It was their father that had driven them apart, but now they must resolve their issues in order to manage a team of forty men in a business they barely know or understand. The situation is further complicated by the fact that the sisters are very unlike. Irina is a self-made businesswoman from Moscow, Olga is an airy and impractical literature teacher from a small town and Maria is a hairdresser from Saratov, who dreams of earning a lot of money but is forced to live with her alcoholic husband.

After graduation our main character Yesenia dreams about work- ing with Rodion Meglin. He is a mysterious, secretive man, a lone investigator with little known about his methods. When Yesenia turns into his trainee she begins to realize that the essence of his method is that Meglin himself – that of a maniac. He feels them instinctively. He is allowed to eliminate some of them, look after others and save their lives. Our heroine who was never meant to work alone will go alone, facing the most horrible crimes of the last decade.