A nearly naked girl is found on the street, not remembering her name, recent events, or why she is covered in blood. And soon a certain Usmanov was found murdered at his home; the prints in the apartment match those of a girl suffering from amnesia. Police press officer Sofia and her friend Artem, who has just received the rank of major, are trying to figure out this matter. A successful investigation is hampered by personal circumstances: Sofia has long stopped loving her husband and is now forced to spend a long time sorting things out, and Artyom is tired of his relationship with the hysterical Lika, who demands that he always be only with her...