A long-running crime drama series, set on the fictional Caribbean island of Saint Marie. Outwardly, the location is an idyllic destination for holidaymakers who arrive in their droves in search of sea, sun and sand. For a succession of British detectives who are sent out to assist their fellow officers, it resembles a sleepy backwater. But first appearances are often deceptive, and Saint Marie is a hot-spot for mystery, murder and suspense. Danger stalks the beachfronts and inland communities, as travellers and locals rub shoulders with a host of unsavoury characters. Ben Miller, Kris Marshall, Ardal O'Hanlon and Ralf Little star as the London-seconded investigators who have their hands full with unsolved cases as they attempt to adjust to their new and unfamiliar surroundings.