DI Neville Parker and the team are back on the idyllic Caribbean island of Saint Marie with more ingenious murders to solve. In the 100th episode, Selwyn celebrates 50 years of police service and comes face to face with a surprising enemy. Meanwhile in the rest of the series, Marlon confronts his future, Naomi lets loose, and Catherine’s old friend becomes a murder suspect. There’s a deadly game of bingo, a cookery competition poisoning, death during a blackout and a mystifying murder in a lift. And with new and returning faces arriving on the island, can Neville open up to love?