When her beloved Kirill kicked her out of the house, Nika thought her life was over. Everything was fine with them, and suddenly the husband announced that he loved someone else. Time passed, Nika learned to somehow live without him. And then terrible news came - Kirill was killed! He was poisoned along with his friend Sasha when they met at the dacha to celebrate his birthday. It’s difficult to say who is more unhappy – Kirill’s mother, who lost her only son, or Sasha’s wife, who is expecting a child. Nika had to take care of them, although she had no intention of getting involved in this matter. She wanted only one thing - to forget everything connected with that period of her life when she was married. But the mystery of the death of her ex-husband and his friend haunts her.