By Danny Brocklehurst. Last in a series of four detective dramas featuring DCI John Stone. A woman witnesses the murder of a young boy by a notorious gang and chooses to speak up, but can she really risk her safety and that of her family? Stone ...... Hugo Speer Paula ...... Maxine Peake Liz/Sue ...... Deborah McAndrew Ray ...... Tony Mooney Anna/Shirley ...... Fiona Clarke Kyle/Michael ...... Oliver Lee Tanner ...... Craig Cheetham Catriona ...... Zoe Henry Ned ...... James Quinn Directed by Nadia Molinari.