Robert Louis Stevenson's chilling novella, 'Strange Case of Dr. Jekyll and Mr. Hyde,' delves into the inherent duality of human nature through the story of Dr. Henry Jekyll, a respected London physician, and his sinister alter ego, Mr. Edward Hyde. As Hyde's malevolent acts escalate, Jekyll finds himself increasingly losing control, blurring the lines between identity and morality. This gothic horror masterpiece explores themes of good versus evil, scientific experimentation gone awry, and the dark secrets that lie beneath Victorian society's polished facade, forcing readers to confront the hidden capacities for both benevolence and depravity within us all.