Presenter Claudia Winkleman will welcome 19 famous faces to the Scottish highlands when the 70-minute opening episode launches at 21:00 BST. 'Highest level of celebrities on reality TV': What to expect from The Celebrity TraitorsIt is the first celebrity version of the show, and will consist of nine hour-long episodes. The show has already made headlines for the starry cast it has attracted - with many viewers saying the line-up features bigger names than other celebrity TV series. The celebrities will be gradually murdered or banished as they attempt to root out the traitorsThe trailer for the Celebrity Traitors shows the celebrities expressing their excitement as they are driven to Ardross Castle in Inverness. Asked if she'd be good at finding traitors, comedian Lucy Beaumont joked: "When I was a teenager, I was good at spotting 15-year-old boys that were lying but things have changed since then.