In the eighteenth century, crimes were committed no less than ours. But, as you know, law and order in a country is determined not by the presence of thieves, but by the ability of the authorities to neutralize them. These two are doing an excellent job: brothers Ivan and Pyotr Eliseev, detectives of the Secret Chancellery. 1736. The abbot of a modest provincial monastery was killed. By personal order of the Empress of Russia Anna Ioannovna, the Eliseev brothers are sent to investigate the murder. Who knew that a seemingly routine matter would affect various circles of society: from highway robbers to the most influential nobles! Moreover, the future of the empire is also at stake...