THE cheeky whodunnit series breaks free of formulaic rmulaic storylines to deliver a clever and entertaining murder mystery ery that will keep you guessing until the end. It follows the murder of a young woman, believed to be a sex worker, in a dodgy apartment ment building. But the crack team of detectives soon realise all is not as it seems. The biggest surprise comes in the final nal scene as Castle ( Nathan Fillion) and Beckett ( Stana Katic, pictured) consider the future of their relationship. ip.