Olga, who became a surrogate mother to twins because of her husband’s debts, loses both her chance to become pregnant again and her entire family in a single day: her husband and children die in an accident. A year later, her path crosses with Tatiana and Dmitry Vakhrameev—the people raising, as she suspects, her twins. Determined to prove herself right, Olga gets a job as a nanny in their home. Day after day, watching the career-driven mother do such a mediocre job of raising the little ones, Olga becomes convinced that the children deserve better and gradually begins taking from Tatiana what she considers “rightfully hers.”