Vadim and Katya have been living together for a long time, but despite the outward well-being of their couple, deep down the girl is not happy that her beloved is in no hurry to formalize the relationship. All her friends have been married for a long time, and at the next bachelorette party Katya meets journalist Sergei. He immediately falls in love with Katya and begins to court the heroine, but even a declaration of love cannot melt his heart. Vadim continues to avoid any discussion of marriage. Katya gets tired of waiting and leaves a relationship that no longer suits her. It seems to Sergei that he is gaining a chance to get closer to his beloved, but Katia does not go to him ... Vadim has a reason to reflect and realize how dear and important Katia is to him. Will the heroes understand how easy it is to lose and how difficult it is to regain trust and love?..