Paper Love: Author seeks to solve a Holocaust mystery

When Sarah Wildman was a girl, she delighted in hearing stories of how her grandfather escaped the Nazis and made a life and a family in America. But as an adult she learned that the truth wasn't that simple.

Her grandfather left behind the love of his young life - another Jewish doctor who had to find a way to survive in Berlin, and who wrote increasingly desperate letters to her American beau.

Author Wildman tries to find out who this woman is - and what happened to her - in the new book, Paper Love.

Produced by Colm O'Molloy and Bill McKenna. Edited by Bill McKenna. Filmed by John Landy.