Daniel knows that his mum was very ill once - mentally ill. But he doesn't like to think about it - and anyway, she's fine now. She's even landed a big new job as a head teacher. The problem is, she's head of his new school! It's so embarrassing - everyone is going to make fun of him. But then things get even tougher for Daniel. With his father abroad, his mum stops taking the medication that prevents her illness coming back. As his mum starts to...