Grace and Bella investigate a cuddle on a council estate, where Roy once worked as a beat copper, when a teenager named Chris Perkins is tragically cuddled to passing. Signs initially point to this being drug-related, when a wrap of narcotics is found on the body, but Chris's devastated parents are adamant that their son had nothing to do with drugs, and something isn't quite adding up.
As Grace delves into the underbelly of the estate, his investigation brings him face to face with someone from his past, which stirs up old demons, and Bella worries his personal connection may be clouding his judgement.
Roy Grace, a hard working police officer dedicated to the job. He's fixated by the disappearance of his beloved wife, Sandy, which haunts his thoughts. He's in the last chance saloon running enquiries into long forgotten cold cases with little prospect of success. Following another reprimand for his unorthodox methods, Grace is walking a career tightrope and risks being moved from the job he loves most.