Denis Astakhov, in front of his father Alexander, wife Natasha and brother Valentin, gets involved in a fight on the eve of an important fight for the title of champion of St. Petersburg. The Federation decides to cancel the fight. The situation can only be resolved by a bribe to a sports official and the intervention of Sergeich, the sponsor of the boxer Oleg Volk. Alexander, who relied on the sports career of his son, and other adult children have problems: daughter Lisa, despite the prohibition of her father and brother, meets with a bandit named Banderas, and son Valentin is painfully going through a divorce and his position as a single father. To collect the necessary amount, the father sends his son to participate in commercial battles. Astakhov Sr. does not know that only the role of an extra is assigned to his son. But Denis is used to winning, not losing by order in the third round. But Denis's main test lies ahead: he learns that his father and beloved wife are lovers.