Charles Dickens' novel A Tale of Two Cities focuses on the French Revolution and its impact on the lives of various characters, including a French aristocrat, a young woman, and her father, who had been imprisoned for 18 years. The novel weaves together the narratives of the French Revolution's brutality with themes of love, sacrifice, and redemption. Through these intertwined stories, Dickens explores the complexities of class conflict, societal injustice, and the power of individual actions to affect the course of history.