This week, Paula Stillie is on a quest to discover her identity, and Lisa Harding longs for the sister she's always wanted.Paula Stillie has always looked completely different from her white adoptive family in Scotland. Heartbreakingly, as a little girl she covered herself in talcum powder to try and look more like her parents. Although she had a happy upbringing, she's always wanted to know who her birth family are and where in the world she comes from. Our search for answers leads across the globe with some unexpected surprises.Meanwhile, Lisa Harding grew up in the north east of England with her single mother Moyra who worked long hours as a hairdresser by day and taxi driver by night. It was a lonely childhood and Lisa always wished for a sister. Then when Lisa was 15, Moyra confided that Lisa actually has an older sister who was given up for adoption before Lisa was born. But the decades went by, and because the subject was painful, they didn't speak about it again, until Moyra was dying of cancer and she told Lisa of her desire to find her eldest daughter. Now Lisa is on a mission to fulfil her mother's dying wish.