Dr. Evgeny Batalov continues his adventures in the world of medicine of the Russian Empire of the late nineteenth century. His innovative ideas and inventions—such as streptocide, brilliant green, and a tonometer—bring him recognition, but also attract envy and ill-wishers. Batalov has to deal with bureaucratic problems, financial difficulties, and personal challenges. He will have to perform complex operations, train staff, compete with officials, take part in duels, and face intrigues involving the Moscow Romanovs. New scientific discoveries and unexpected turns of fate await this talented doctor.