"Crooked House" is a mystery novel written by Agatha Christie, first published in 1949. The story revolves around the murder of a wealthy man in a uniquely designed house that appears to be tilted and distorted. The narrative is told through the perspective of Charles Hayward, who investigates the crime and uncovers secrets among the victim's family. The novel is notable for its intricate plot and unexpected twists, characteristic of Christie's writing style. It explores themes of deception and the complexities of human relationships, making it a compelling read for fans of the mystery genre.