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 Fahiya
Sound Design: Cathy Robinson
Original Music: Rhodri Llewellyn John
Executive Producers: Karen Voisey and Andy Maguire
Story Consultant: John Norton
Production Manager: Andrea Deere
History Consultant: Chris Phillips.
Archive: BBC Black Britain; ITV Wales
Zoe Davies - Laura Mattan
Dean Rehman - Phillip Mattan; and Eddie Mattan
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