Early 20th century St. Petersburg, siblings Yakov and Sophia separated after father's death. They navigate high society conspiracies aimed at destroying Russian Empire while seeking reunion and choosing between good and evil.

Beginning of the 20th century, St. Petersburg. After the death of their father, young brother and sister, Yakov and Sophia, lose each other. To meet again, they will have to go through street gangs, the revolutionary underground, the intrigues of the political police and high society and find themselves at the center of a conspiracy whose goal is the destruction of the Russian Empire. Will they be able to hear the only person who calls for salvation through Love and Faith, and make the right choice between good and evil when the world is collapsing around them?