Bill and Jennifer Schnell have been designing and building haunted houses since 1995, and their most recent creation, The Necropolis, is currently Missouri's top-ranked fright factory. The couple has turned an abandoned Columbia meatpacking plant into a nightmare for the faint-of-heart by using traditional haunted house strategy and a few twists and turns of their own. "We've definitely honed our skills and gotten better through the years," says Jennifer.