One night in 1960, the twins awake to find their father pulling their screaming mother from the house. She is to be committed to an asylum. It is, so their father insists, for her own good. It's not long before they, too, are removed from their London home and sent to Nightingales - a large house deep in the New Forest countryside - to be watched over by their cold-hearted grandmother, Mrs Mitcham. Though they feel abandoned and unloved, at least...