Killer in the White City (S01E06)

Theo Wilson journeys back to 1893 Chicago, landing right in the midst of America’s first notorious serial killer, H.H. Holmes. Curious about what drove Holmes to his horrific deeds, Theo tracks the killer's transformation from a cunning con artist to the proprietor of a cleverly designed “murder castle.” Here, amidst the backdrop of the World’s Columbian Exposition, Holmes stalks his unsuspecting victims, turning the fair's excitement into a nightmarish reality.