When a body is dredged up from the seabed of the English Channel, it sets in motion a truly disturbing investigation which forces Grace to ask himself just how far anyone might go to save the ones they love.
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.