The famous film actress Klimanova approaches investigator Masha Shvetsova with complaints that she is being persecuted. And a few days later Klimanova is found dead. The circumstances of the death indicate suicide; there is a suicide note; the actress's doctor reports that she was mentally unstable. But something haunts Masha Shvetsova, and, as it turns out, for good reason. The suicide note found near the corpse was written by Klimanova several years ago for a film in which she starred. And soon the operative who helped Masha in the investigation is killed...