In fog-drenched Victorian London, psychologist Charles Marlowe delves into the darkest recesses of the human mind, concocting a serum that promises to unleash primal instincts. But when he tests it on himself, a sinister alter ego, Edward Blake, emerges—a malevolent force that begins to terrorize the city. As Marlowe’s friend Utterson grows suspicious, he uncovers a chilling web of blackmail and madness, where the line between doctor and monster blurs. This atmospheric horror classic explores the terrifying duality of human nature, where the cure for the soul becomes the key to its destruction.





























































