What sort of betrayal would drive a brother and sister apart? When Grace and her brother Andrew inherit their grandmother's house in Hampstead, they decide to move in together. It seems the obvious thing to do: they've always got on well, the house is large enough to split down the middle, and neither of them likes partying or loud music. There's one thing they've forgotten though: what if one of them wants to bring a lover into the house? When Andrew's partner James moves in, it alters the balance – with almost fatal consequences. The Child's Child is both an intriguing examination of betrayal in families, and a taut, thrilling listen.