Alina believes that her life has been very successful: a wonderful husband, a wonderful son, prosperity in the house. And most importantly: she knows that Slava will never leave her, because they are connected by much more than love and marriage - Alina keeps his secret. But the murder of Irina Leonidovna, a neighbor in the dacha village, can destroy the idyll of family life, because it means that someone else knows the secret of Slava...