Desperate to clear Mahmood Mattan's name, his family have one last throw of the dice.It works - and finally his widow and three sons have their day in court.Forty six years after Mattan was hanged, a series of revelations are made which seriously undermine the case against him.And, explosive new evidence emerges which points the finger at who the real killer could be.

Presenter and Producer: Danielle FahiyaSound Design: Cathy RobinsonOriginal Music: Rhodri Llewellyn JohnExecutive Producers: Karen Voisey and Andy MaguireStory Consultant: John NortonProduction Manager: Andrea Deere

History Consultant: Chris Phillips.Archive: BBC Black Britain; ITV Wales

Zoe Davies - Laura MattanDean Rehman - Phillip Mattan; and Eddie Mattan