On a quiet Saturday morning in Fresno, a man is discovered in his living room -- fatally shot twice through the chest. At first police are baffled. But when the evidence points to an unthinkable suspect -- it becomes clear that this case may tear the city in two. Detectives need to know exactly what happened the crime scene -- or the killer may walk free. That's when they call one of the most experienced criminal profilers in FBI history, Mark Safarik.