The novel intricately weaves together the lives of three men across different timelines, exploring themes of betrayal, ideology, and the complex nature of historical truth. It follows the story of Iván, a frustrated Cuban writer who encounters a mysterious man with two Russian wolfhounds, leading him to uncover the intertwined destinies of Leon Trotsky and his assassin, Ramón Mercader. Through a narrative that shifts between revolutionary Russia, the Spanish Civil War, and post-revolutionary Cuba, the book delves into the personal and political motivations that drive individuals to commit acts of both idealism and treachery, ultimately reflecting on the disillusionment with utopian dreams.