Investigator Natalya Pakhomova learns that her eight-year-old son is in urgent need of an expensive operation. Natalya is divorced and lives with her retired mother. A bank loan, the sale of an apartment, help from colleagues, modest personal savings - this is only half the amount required. Meanwhile, the boy's condition worsens. His days are numbered. Suddenly, Natalia receives an offer from a serious crime boss: she will receive the required amount if she organizes the escape of the killer, whose case she is leading ...