One night, Polina Kazakova, known in town as Miss Robin Hood, meets a woman with a small child. Anya Ignatieva is planning to commit suicide by throwing herself off a bridge. After listening to her story, Polina understands where such a desire came from: her beloved husband died, a prestigious job was lost, and she was left with a little daughter in her arms. The worst thing is that the culprit of all the misfortunes is Anya’s half-sister, who hated her since childhood. Polina is horrified by the story told. But, putting emotions aside, he develops a plan on how not only to take revenge on the cynical scoundrel, but also to help Anya find peace and happiness again!..