In 1940s England, charming fraudster John George Haigh convinced himself he had found the ultimate cheat code for the justice system: a literal misreading of corpus delicti that, in his mind, meant no body equaled no crime. Driven entirely by profit, he dissolved his victims in vats of concentrated sulfuric acid, earning the notorious nickname the Acid Bath Murderer, while systematizing murder around a fatal mix of arrogance and bad legal theory.

This episode traces the mechanics of his hubris, from prison experiments on mice to the murders of the McSwans, the Hendersons, and Olive Durand-Deacon. We follow how a workshop without a floor drain, a dry-cleaning receipt, and an acid-resistant plastic denture unraveled his “perfect crime,” plus his desperate vampire-and-insanity defense, the contempt-of-court scandal it triggered, and his execution in 1949.

• How he misread corpus delicti into a “no body, no crime” theory
• The childhood and lifelong grifting that shaped his false fronts
• The Guildford typo that foreshadowed his sloppy attention to detail
• Pathologist Keith Simpson recovering gallstones and a denture from the sludge
• The fabricated blood-drinking story and why the insanity defense collapsed