Forensic psychologist, Dr. Monique Tanner, is a woman of science and fact and a complete disbeliever in the paranormal world. However, one day she finds out that she is the last descendant of a long line of vampire hunters and demon slayers known as the Lightwalkers. Empowered with an ancient magical ring, Dr. Tanner becomes the final Lightwalker to protect her city from the evil of the night.