TV Guide U&Alibi Friday

As Alexa's birthday approaches, Kieran gives her an early present - the case of a plastic surgeon obsessed with getting her own cosmetic procedures who died after self-administering an anti-wrinkle drug she had developed. Detective drama, starring Lucy Lawless and Bernard Curry

Another mystery for Ardal O'Hanlon as Irish detective Jack Mooney working on the Caribbean island of Saint Marie, where the sun shines all day and it seems half the residents are killers-in-waiting. And so it appears this week as someone from JP's past is caught red-handed at a murder scene, raking up old memories for the young officer. But can the DI unravel the complex mystery to get at the truth? Tobi Bakare and Danny John-Jules co-star, with guest appearances from Ralph Brown and Adjoa Andoh

The celebratory launch of a new luxury resort is cut short when a woman is found electrocuted in her hotel bathtub - with the door locked from the inside. It looks like a simple case of suicide, but with Jack Mooney no longer around to confirm Commissioner Selwyn's suspicions, DI Neville Parker is temporarily flown over from Manchester to close the case. However, he soon realises that island life is not for him, so when evidence of suspicious activity turns up, he is dismayed to realise he will have to extend his stay and investigate the case as murder. Ralf Little joins the cast, with guest appearances by Steve Pemberton and Samantha Bond