Someone is murdering innocent people in Santa Fe and cutting an upside down cross on the victim's forehead. The town is in a panic as many people swear a devil worshiper is responsible for the murders. Davidson, The Great Detective from New York City is in town and he is more of a problem than a help is solving the case. Will Cannon enlists the help of a young cowboy and together they try to track down, Damon, The Demon before he kills more innocent people.