In the center of the plot is a senior investigator named Masha Shvetsova and her male colleagues. The plot is the most vital, but, like in “Streets of Broken Lanterns,” it is seasoned with a fair amount of humor - otherwise, how can the audience (and the heroes) endure countless morgues, identifications and other “cute” charms of the investigative routine?

Misha's life didn't go well. Overnight, he lost his girlfriend, his job, and his confidence in the future. Having bought an armchair on Avito, he finds inside a folder with documents and a huge amount of money belonging to the right hand of the governor of the city. Thinking about what to do with the find, Mikhail begins to gradually fix communal defects in the yard, which deserves the respect of residents and the status of a people's deputy. However, the governor discovers the loss of documents, and elections are coming soon in the city... Will popular love and a mysterious folder help Misha take the governor's chair?

In this TV-series the events of the beginning of the 20th century in Russia are highlighted. Revolutioners, terrorists, spies - and investigator Putilovskii and his team fight them as best they can.