Nicola Walker (Last Tango in Halifax) and Sanjeev Bhaskar (The Indian Doctor) lead a powerful ensemble cast in this highly-acclaimed, thrilling crime drama. DCI Cassie Stuart and her partner, DI Sunil "Sunny" Khan re-open cold murder cases from decades past, throwing lives into turmoil as they seek justice for their unforgotten victims. Seen on Masterpiece Mystery! 6 episodes, 4 ½ hrs, 2 DVDs or Blu-ray discs, SDH.