Chicago Hauntings' founder Ursula Bielski and her crew of paranormal researchers explore supernatural active sites on foot. The rotating itinerary of stops includes the site of the Saint Valentine's Day Massacre, the location of the Fort Dearborn Massacre, and the spot where Resurrection Mary met her fateful end.

Along with her primary routes, Ursula leads specialty tours including daytime trips based on The Devil in the White City, Erik Larson's bestseller about serial killer H. H. Holmes, and strolls down one Chinatown block where every building is allegedly haunted. She also hosts private tours, pub crawls, and kid-friendly excursions during which youngsters hear toned-down tales and learn about ghost-hunting equipment more advanced than their dog Sherlock.