'Sometimes we can't see what's right in front of us, Kat. Everyone has secrets, even the people we love, the people we live with...' Kat remembers the days when her only daughter Amy wouldn't leave her side. Amy was the baby who cried when you walked out of the room, the toddler who was too shy to speak to strangers, the small child who clung to Kat's legs in the school playground. But...