Every year around Halloween, thousands of Americans go to their churches to meet the devil. These "Hell Houses" - designed by Pastor Keenan Roberts - are kind of like haunted houses, but each room gruesomely displays the consequences of sin. Now a secular group of artists and actors have staged a Hell House in the capital of blue state America: New York City. And they got a stamp of approval from Pastor Roberts himself. Peter Crimmins looks at this strange partnership between Christian believers and liberal non-believers.