Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson is a haunting exploration of the dual nature of humanity. Set in Victorian London, the novella follows the respected Dr. Henry Jekyll, who develops a potion that allows him to separate his darker impulses into a new identity—Mr. Edward Hyde. As Hyde, he indulges in increasingly violent and immoral behavior, eventually spiraling out of Jekyll's control. Through suspenseful narrative and psychological depth, Stevenson delves into themes of good versus evil, the masks we wear, and the dangers of unchecked scientific ambition. This timeless tale continues to captivate readers with its chilling depiction of inner conflict and moral ambiguity.