An officer is shot point blank in the police station lobby and sheriff Jeffrey Tolliver is wounded, setting off a terrifying hostage situation with medical examiner Sara Linton at the center. It’s up to Lena Adams and FranaWhen Atlanta housewife Abigail Campano comes home unexpectedly one afternoon, she walks into a nightmare. A broken window, a bloody footprint on the stairs and, most devastating of all, the horrifying sight of her teenage daughter lying dead on the landing, a man standing over her with a bloody knife. The struggle which follows changes Abigail's life forever.When the local police make a misjudgement which not only threatens the investigation but places a young girl's life in danger, the case is handed over to Special Agent Will Trent of the Criminal Apprehension Team - paired with detective Faith Mitchell, a woman who resents him from their first meeting.But in the relentless heat of a Georgia summer, Will and Faith realise that they must work together to find the brutal killer who has targeted one of Atlanta's wealthiest, most privileged communities - before it's too late...k.

Going back and forth between present and past, the narrative takes place in two time frames: present and ten years prior to the shooting. The “present” narration evolves over several hours; the “past” takes place over the course of a week.

Lena will primarily get the present narration, working outside the station with Frank trying to figure out who the shooter is and how to resolve the hostage situation. Inside the station, Jeffrey has not been fatally wounded, but Sara knows he could easily die if the bleeding is not stopped. He drifts in and out of consciousness and through Sara and Jeffrey we get the past, and the case that leads up to the present day shooting.