A terrible, bitter time has come in the life of the famous writer Daria Knyagicheva. She lost her closest, beloved men one after another. The first to pass away was her friend and teacher, the famous writer Arefiev, who called himself the Rusty Knight. The other two - her beloved and childhood friend - died a cruel death... And Daria feels her involvement in their deaths. Moreover, another man, who also once meant a lot to her, seems to be involved in these crimes. And if the murder of her beloved - the oligarch Pavel Sviridovsky - shook up the entire public not only in her hometown, but also in the country, then the death of her school friend, the artist Olya, was considered an accident by the competent authorities. But Dasha knows that this is not so. She dares to share her suspicions with the investigation. Evil must be punished!..