Alexander Maksimov is a brilliant psychologist and the best negotiator in Russia. He has vast experience behind him and a large number of saved people: he worked during the attacks, urged the release of hostages, dissuaded criminals and victims from committing a fatal act. Over the years in the profession, Maximov has developed his own unique method of negotiating. But even a seemingly perfect employee makes mistakes. In the past, Maximov, negotiating with terrorists who seized the school, is defeated - his daughter dies. Unable to look into the eyes of his wife and son, Alexander leaves the family. Years later, the hero again faces the culprit of that tragedy - it turns out that during the explosion in that school, the attacker did not die and now throws a new challenge to Maximov.