Shy and deaf, twenty-three-year-old Claire Deveraux has worked hard to land her dream job as a foreign service officer at the U.S. Embassy in Paris. Yet her idyllic life is shattered when she finds a woman lying on the restroom floor dying from a gunshot wound. The dying woman utters three words to Claire and conceals a thumb drive in Claire's pocket. The items are keys to the location of proceeds from a bank robbery. The killer, certain Claire now has sole possession of those items, must find her, recover the code words and the drive, then kill her before she can solve the puzzle and recover the money. Knowing he is determined to find and kill her, Claire must do whatever she can to keep her heart beating.

Claire's twin sister, Megan Deveraux, arrives at Claire's Paris apartment, seeking refuge from cartel thugs wanting to recover stolen diamonds. Unwilling to add to Claire's problems, Megan travels across Europe in an attempt to avoid them. To save her own life and that of her sister, Claire does the unthinkable. She makes a pact with the man wanting to kill her.