Three and half years ago, former medical examiner Sara Linton moved to Atlanta hoping to leave her tragic past behind her. Now working as a doctor in Atlanta's Grady Hospital, she is starting to piece her life together. But when a severely wounded young woman is brought in the emergency room, she finds herself drawn back into a world of violence and terror. The woman has been hit by a car but, naked and brutalised, it's clear that she has been the prey of a twisted mind...