This is book one of the 'Into The Night' series featuring Roger Armstrong. Roger is an ex-Air Force Security and ex-personal security guard before going into private investigation. This was mainly due to a personal encounter which almost cost him his life. Ultimately the killer was a demon who Roger found he not only could see but hurt. Several investigations later Roger was beginning to be known among the demons as a human not to mess with. He was also starting to realize more of his powers and abilities. During this time he teams up with some old friends he went to school with.