Chicago, 1893: the World's Fair brought people from all over the world. Buffalo Bill's Wild West, denied a place at the fair, rented acreage outside the fairgrounds and played to record setting crowds—the likes of which they would never see again. When Annie Oakley, performing with the Wild West, tries to help a friend, it sets her on a collision course with a serial killer who the press would later dub "The Beast of Chicago."