Andrey Chapaev, an employee of the Moscow criminal investigation department already known to readers, receives a promotion and a new rank of lieutenant colonel and still investigates cases with the same zeal. The main character will have to find out who kidnapped the nephew of an influential Chechen figure; understand the vicissitudes of the vendetta in the ranks of the Ministry of Internal Affairs; help a friend find his wife's rapist. Lieutenant Colonel Chapaev is faced with a dilemma: to deliberately violate job descriptions, losing a star on his shoulder straps, or to act according to his conscience. This is the everyday life of a criminal investigation officer. But if murders, robberies, and kidnappings became part of Andrei’s life, then the new role of the head of the family becomes more and more difficult and unusual. Chapaev learns to be a husband, a father and learns from his wife news that is about to change their whole lives. Is the reserved and stern Lieutenant Colonel Chapaev ready for such “not boring” changes?