"Our Mutual Friend" is a novel by Charles Dickens, published in 1865-1866. The story revolves around the themes of wealth, social class, and the impact of money on human relationships. It follows the lives of several characters connected by the mysterious inheritance of a fortune from the deceased John Harmon. The plot centers on Boffin, a kind-hearted dustman who inherits the fortune and becomes a benefactor to others. Key characters include Lizzie Hexam, a strong-willed woman, and Eugene Wrayburn, a young lawyer. Their intertwined lives explore love, ambition, and the moral dilemmas posed by wealth.