TV Guide Alibi Wednesday

Neville tries to embrace island life with a game of beach volleyball, only for a rogue sandfly bite to land him in hospital. His time on the ward takes a shocking turn when a nurse takes her own life - although the DI suspects foul play and starts to build a case against his key suspects. Meanwhile, JP and Marlon are struggling to achieve a good working relationship

A group of astronomers gathers on the cliffs of Saint Marie to watch Jupiter and Saturn align - a once-in-a-lifetime planetary event. However, one of its number - renowned professor Bertrand Sworder - meets an untimely death. The circumstances of his demise warrant the involvement of Neville and Naomi, who soon learn there was some professional hostility towards Sworder. Back at the station, Darlene announces that she has passed her exam and is ready to be a trainee officer. Caribbean-set detective drama, starring Ralf Little, Don Warrington and Tahj Miles