"Doubles" is a philosophical novel by the outstanding Russian writer Fyodor Dostoyevsky. In this work, the author examines complex issues of morality, justice, and human nature through the lens of a doppelgänger, a special character who repeats all the life actions of the main character. The action unfolds in St. Petersburg of the 19th century. The main character, who has a rather capricious character, suddenly collides with his doppelganger - a person who is strangely similar to him both externally and internally. Because of this meeting, the main character begins to experience deep internal conflicts and doubts about the justice of his actions. Can a person fully know himself? How can this unprecedented meeting with oneself end? "Doubles" is not just an exciting story, but also a deep philosophical investigation into the essence of the human soul and the search for answers to the eternal questions of existence.