Victorian era, Gothic atmosphere, dark alleys, foggy London streets, mysterious laboratory, Henry Jekyll, middle-aged man, tall, slender build, pale skin, intense eyes, black hair, well-groomed beard, white shirt, black vest, long coat, top hat, holding a lantern, eerie lighting, fog machines, stone walls, wooden shelves, dusty old books, beakers, test tubes, mysterious potions, dimly lit, close-up on face, 3/4 composition, cinematic lighting.