The detective story takes place on Maslenitsa in St. Petersburg in March 1894. A series of crimes leads A. Pushkin to the insurance company "Stability". It turns out that the employees are involved in scams. The investigation leads to the family of the owner of "Stability" M.Alabyev. Pushkin's beloved A. Kern is involved in the war that unfolded between the children of Alyabyev and his wife Lydia. Thinking that he is investigating the case, Pushkin does not suspect that he has entered into a deadly battle with the killer, in which Agatha's life is at stake.
His motto was laconic: "I promised - stay still." This is how Alexei Balabanov lived, raised his sons, was friends, and so filmed. A legendary director and an extraordinary person who made both "festival" and "mass" films with equal ease. He was a great father and a difficult husband, a loyal friend and an honest guy. Balabanov with his life, passions, losses, burning pain on the way to God in the memories of those closest to him - mother, sons, wife and friends. He seems to be telling the crew again: "Let's do it talentedly!"