How could your good friend become your worst enemy? Being held hostage at gunpoint by her childhood friend is not Dr Heather Gilmore's idea of a good day at work. It only gets worse when she hears that her nineteen-year-old daughter Leah has been kidnapped. Sergeant Claire Boyle wasn't expecting to get caught up in a hostage situation during a doctor's appointment. When it becomes apparent that the kidnapping is somehow linked to the hostage-taker, a woman called Eileen Delaney, she is put in charge of finding the missing girl. What happened between Eileen and Heather to make Eileen so determined to ruin her old friend? Claire Boyle must dig up the secrets from their pasts to find out - and quickly, because Leah is still missing, and time is running out to save her.