Sasha comes to Moscow to participate in a design competition and stays for one night with her former classmate, Egor. But suddenly, Egor's long‑time neighbor, Maxim, who has nowhere to live, returns to the apartment, and then Sasha's younger sister, the student Dasha, shows up. On the same day, Anechka, the daughter of her mother's friend, moves into the apartment; she's planning to find a wealthy groom in Moscow, and Sasha's ex‑husband, the assertive Anton, also moves in. Now, due to circumstances, the friends are forced to live together, wage war over sleeping spots, quarrel and make up—and all of this in secret from the eccentric landlady.