A case hits close to home for the Homicide team when the victim is one of their own, coroner Dr. Matthews. Detectives Angie Flynn and Oscar Vega lead the investigation with dogged determination, and Dr. Rogers honours the memory of her friend by taking his place in a high-profile trial, only to discover that Dr. Matthews may not be the person she thought he was. Meanwhile, Sergeant Cross blurs the line between professional and personal, which doesn't sit well with Angie.