"The Devil in the White City" is a non-fiction book by Erik Larson that intertwines the stories of the 1893 World's Fair in Chicago and a serial killer named H.H. Holmes. The book explores the architectural marvels and innovations showcased at the fair, highlighting the efforts of key figures like Daniel Burnham, who was instrumental in its planning. At the same time, the narrative delves into the dark side of the fair, focusing on Holmes, who lured victims to his hotel near the fairgrounds. The juxtaposition of beauty and horror illustrates the contrasting elements of American society during this period.