The Dungeon is run by Dr. Jekyll who is a sadistic, evil, terrifying madman - you'll love him! Dr. Jekyll conducts bloody experiments on human bodies in a desperate attempt to recreate his grandfather's serum to control man's innate urge to kill. He prowls the streets and snatches up innocent people for his gruesome ends! Dr. Jekyll doesn't need a serum. He's already nuts. So he instead uses his 'rage serum' on his kidnapped captives who viciously beat each other to death in The Dungeon. Aiding Dr. J. in his experiments are a giant black brain-damaged cripple "surprised his name isn't Igor" named Boris "Close enough" whom Dr. Jekyll whips "Love is painful" and his lobotomized, wide-eyed sister Hilda "You're just like mother. That's why I hate you!" who he pours scalding water on. Meanwhile, his beloved fiancé, "the sensual and enchanting Julia", is kept drugged and tied in his bedroom, as her father, Professor Atkinson, is lured to Jekyll's mansion for her alleged funeral: "You fiend, Jekyll! You fiend! You fiend!".