In October 1957 Marlon Brando married a young studio actress called Anna Kashfi. He was thirty-three and at the pinnacle of his beautiful fame having recently won an Oscar for On the Waterfront.

The wedding was front-page news around the world. His new bride was twenty-three, claimed to be an Indian princess and was pregnant.

The day after the wedding a factory worker living in Wales, William O'Callaghan, revealed that Brando's bride was in fact his daughter, Joan O'Callaghan and had been a butcher's assistant from Cardiff.

This book sets out to discover who was telling the truth and who was lying – and, perhaps more importantly, why?