The focus of the story is on the Ushakov sisters, Kristina and Marina, who constantly argue. They have never been able to stand each other since childhood, constantly jealous of their parents' attention and fighting over the best toys and clothes. In a state of constant hostility, they have hated each other since childhood. Years have passed, but the relationship between the girls has not improved. On the contrary, they have become bitter enemies. Each of them wants to inherit the wealth their parents acquired. The younger sister believes that the older sister is to blame for their mother's death.