Charles Hayward, a former spy turned private detective, reunites with his ex-lover Sophia when she asks him to investigate her grandfather’s murder at the family’s ominous estate, Crooked House. As Charles delves into the secretive lives of the Leonides family members, he uncovers hidden motives and dark secrets that lead him closer to the truth. Racing against time before Scotland Yard intervenes, Charles must navigate treacherous alliances and betrayal to unmask the killer and expose the shocking truths that threaten to tear the family apart.