A strange occurrence happens each October on the upper east side of Manhattan. Some of the most valuable real estate in New York becomes the setting for elaborately staged tableaux of horror. With each passing year the stakes are raised. This year there are animated monsters, complete with soundtracks, smoke machines and stage lighting. Some think there’s a friendly competition among a group of hedge fund managers for the scariest brownstone. Others believe that a deal was struck with the devil, the standard success for your soul, with a clause for a killer tribute each Halloween. Who knew the devil had a sense of humor!