Lord Louis Mountbatten, distinguished naval officer and last viceroy of India, is perhaps best remembered as elder statesman of the royals. Uncle to Prince Philip, he had an even closer bond with his great-nephew Prince Charles. But there is a lesser-known - yet vital - part of Mountbatten's life in his open marriage to multimillionaire Edwina Ashley. This film charts how Louis and Edwina gradually became the 'It' couple of their time, despite a series of scandals that caused a sensation in society, but largely stayed out of the newspapers