Two girls meet by chance on Hampstead Heath. To an outsider, they could not appear more different. Verity is well-mannered and smartly dressed, living with her parents in a beautiful house close to the heath. Ruby is dishevelled and grubby, used to a life of squalor where she is forced to steal to survive. Yet there's an instant affinity between them, and when their fortunes are shockingly reveā¦