technically she's not really a demon... that would imply she was somehow satanic... she's more of an ancient species, nocturnal creatures known as Gargoyles that turn to stone during the day, and surviving in clans. The show focuses on a clan living in the year 994 in a castle in medieval Scotland where they exist in an uneasy truce with humans until they are betrayed and cursed to remain frozen in stone until the castle "rises above the clouds." In 1994, billionaire David Xanatos purchases the Gargoyles' castle and has it reconstructed atop his New York skyscraper, awakening the six remaining Gargoyles. In trying to adjust to their new world they are aided by a sympathetic NYPD officer, Elisa Maza, and quickly come into conflict with the machiavellian Xanatos. In addition to dealing with the Gargoyles' attempts to adjust to modern New York, the series also incorporated various supernatural threats to their safety and to the world at large.