HOW WAS A MAN KILLED WHILE ALONE IN A LOCKED ROOM? IS IT THE PERFECT MURDER? It's a case for FBI Special Agent Rose Blake. Still raw after a notorious serial killer slipped through her net, Rose will do whatever it takes - including putting her own life at risk - to nail the perpetrator this time. When a second body with identical wounds is discovered, Rose realises that a twisted murderer is playing a deadly game. A murderer who's not going to stop any time soon. But what links the victims? And who's next? No one is safe, and the clock is ticking...