The hunt to catch the killer of three young women in the Port Talbot area in 1973 and the remarkable story of how - in the first case of its kind - the mystery was solved almost 30 years later using pioneering DNA evidence. Contrasting the policing methods of the 1970s with the forensic breakthroughs of the early 2000s, the series portrays a town dealing with the repercussions of an unsolved case three decades on, and asks if justice can ever truly be found.
Richard Harrington (born 12 March 1975 in Gurnos, Merthyr Tydfil) is a Welsh actor of stage and screen. He stars as DCI Richard Matthias in the acclaimed Welsh drama "Hinterland"/"Y Gwyll".