Benidorm Is Murder stars John Hannah as Dennis, a former detective who has left the UK to run a bar in Benidorm. Carolina Bécquer co-stars as Rosa, his true-crime-obsessed barmaid, with Ariadna Cabrol and Damian Schedler Cruz among the Spanish police characters. The series is a British detective comedy-drama built around murders involving tourists, amateur sleuthing and local crime in the Spanish resort town.