When DI Poole is bedridden with a tropical fever and Camille is on a course in Paris, Dwayne and Fidel have to solve the murder of a local diver. The commissioner puts in charge Det Sgt Angela Young (Shirley Henderson), who is holidaying on the island, and whose eccentric behaviour is even more annoying than Poole's, as well as less effective. Dwayne and Fidel go behind her back supplying case details to DI Poole who is being looked after by Camille's mother and her chicken soup - but can an ill DI Poole solve the case?