Here are two things I know about my mother: 1. She had dark hair, like mine. 2. She wasn't very happy at the end. Anna has always believed that her mother, Debbie, died 30 years ago on the night she disappeared. But when her father gets a strange note, she realises that she's never been told the full story of what happened that night on the cliff. Confused and upset, Anna turns to her husband Jack - but when she finds a love letter from another woman in his wallet, she realises there's no-one left to help her, least of all her family. And then a body is found...