Eighteen years after walking away from a promising career in law enforcement, Mary Dubois is pulled in on a serial killing case that will turn her life inside-out, threatening her sanity. The murders keep piling up. Mary will need all her profiler training and more to help capture a murderer intent on playing a gruesome and deadly game of cat and mouse, with her as the ultimate victim. Mary will need to overcome severe anxiety and deal with transphobia as she follows leads and develops a profile before facing down the rainbow killer.