They watch. They wait. They kill.The Murderers' Club is an elite group of serial killers. They communicate online and use a secure website to watch webcam footage of their victims. The President of the Club scams eight people into believing they're part of a reality TV show set in an underground bunker in the desert. Like all reality shows, there are challenges for 'immunity'. Each week the Club members vote off a contestant, but instead of that person going back to TV appearances, etc. they're taken by a member of the Club and killed.FBI profiler Sophie Anderson and Detective Darren Carter from Tucson Homicide are investigating the killings, but the reader is initially privy to more information than Sophie.Sophie and Darren are getting close to the truth when one of the victims escapes and tells them the full story. From there, it's a race against time to ensure the remaining 'contestants' are saved.