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Sky announces gripping true crime series on the biggest criminal investigation in Welsh history, Murder in The Valleys.

Sky today announces a powerful new four-part true crime series, Murder in the Valleys, which takes a forensic look at the biggest murder investigation in Welsh history.

Filmed over a period of twelve months, Murder in The Valleys tells the story behind the largest and most exhaustive criminal investigation in Welsh history and its enduring repercussions.

One night in June 1999, three generations of one family were brutally killed in the small village of Clydach, South Wales. For more than twenty years – and despite the conviction of a local builder - the case has deeply divided the community. Now, as the police review the evidence, this series examines a case that didn’t end with the guilty verdict.

Poppy Dixon, Director of Documentaries and Factual Commissioning at Sky, said: “The Clydach murders remain one of the largest and most divisive investigations in Welsh history. The team at Five Mile Films have meticulously re-examined the case and bring fresh scrutiny to the historic inquiry, in a richly thought-provoking and gripping series”.

The Sky Original series, which examines the Clydach murders, is set to premiere on Sky Crime and streaming service NOW on Sunday 6th February.

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