In 1895 Nizhniy Novgorod, Russia, amid preparations for a major trade fair, the murder of a wealthy nobleman occurs. Detective Aleksey Lykov investigates, uncovering a sinister plot that endangers his life as he pursues the truth.

1895. Nizhniy Novgorod is preparing for the largest trade event of the year - the fair. But in the measured and prosperous life of the city, a loud murder of the richest man takes place - the leader of the provincial nobility Nefedev. Aleksey Lykov, an employee of the Nizhniy Novgorod detective department, undertakes to unravel this case. Step by step he encounters evil beyond his understanding. And to defeat him, he puts everything on the line: love, honor and even his life.