FBI crime analyst Avery Delaney will have to use every one of her skills on a case that hits painfully close to home . . .
Avery's beloved aunt Carolyn is on her way to a luxury spa in the mountains of Colorado, but she never arrives. Under false pretences, she is taken to an isolated retreat by a handsome stranger with a dazzling smile, suave demeanour, and the darkest of motives. His name is Monk, and he is a contract killer.
With scant clues and fewer resources, Avery must join forces with the secretive but alluring ex-marine John Paul Renard to track down and save Carolyn – and outmanoeuvre a brilliant assassin who is part of an elaborate plot of madness and lethal vengeance.