The young musician Konstantin Lvov - a patient of the successful psychiatrist Lydia Larinova - became the doctor's lover in combination. However, Lydia quickly got bored of this relationship, and she tried to break the connection. But Konstantin insisted on the continuation of the novel and once, without an invitation, showed up to her for her birthday. Larinova chased away the unfortunate admirer, and a few days later he was found dead in his own recording studio.

Renowned neuropathologist Anna Fomicheva, who specializes in working with patients in a state of prolonged coma, was found dead in the pool where she regularly went swimming. It becomes known that Fomicheva developed a new treatment method using dangerous drugs. The husband of one of the patients was categorically against such experiments. Having studied in detail the woman's medical history, the investigation found that the heart attack, as a result of which she fell into a coma, was not an accident. Georgy and Irina managed to establish the motive - a million dollars.