DESCRIPTION: (from Acorn TV's web site, November 2023) Premieres November 27. In 1973, three teenage girls were killed in Wales, their murders unsolved but never forgotten. Nearly 30 years later, new DNA developments lead the police to reopen the case. This true-crime drama follows Paul Bethell (Philip Glenister, Life on Mars) through both timelines, from frustrated junior officer to determined DCI, as his team turns to revolutionary techniques to find a serial killer.