Brighton based Detective Superintendent Roy Grace is a hard-working police officer who has given his life to the job, but his career is currently at rock bottom. He’s fixated by the disappearance of his beloved wife, Sandy, and running enquiries into long forgotten cold cases with little prospect of success. Following another reprimand for his unorthodox police methods, Grace is walking a career tightrope and risks being moved from the job he loves most.
Months on from his last investigation, and with Grace's team still reeling from the fallout, Roy must prove that a wealthy Brighton businessman has brutally murdered his wife.
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.