The 20th century—the 1920s. A typical communal apartment where different people live together with their habits, characters, and lifestyles. The tenants often meet in the shared kitchen, and all their conversations are about the same thing: a strange neighbor who keeps to herself—and from whom “some kind of danger can be felt.” What unites all the neighbors is hatred for “that vixen with the cocked gun” and a huge desire to “smoke her out” of the apartment. But no one knew the real story of Olga Vyacheslavovna Zotova—formerly the daughter of a merchant—who lost her parents, miraculously stayed alive, and fought in the Civil War as a cavalryman in the ranks of the Red Army…