Naomi Jacobs went to sleep one night in 2008 as a 32-year-old mother, and woke up the next morning believing she was a 15-year-old school girl. She did not recognize the house she woke up in, though it was hers, nor her 10-year-old son, Leo. As far as she was concerned, she was in 1992, when John Major was the UK's Prime Minister, before the world had been blessed with mobile phones, DVDs, or reality TV. She didn't know it, but she had dissociative amnesia. With the help of her personal diaries and those close to her, Naomi set about piecing together as much as she could of her missing...