Outside a remote manor house in an idyllic wood, a baby girl is found. The Harrington family takes her in and disbelief quickly turns to joy. They're grieving a terrible tragedy of their own and the beautiful baby fills them with hope, lighting up the house's dark, dusty corners. Desperate not to lose her to the authorities, they keep her secret, suspended in a blissful summer world where normal rules of behaviour - and the law - don't seem to apply. But within days a body will lie dead in the grounds. And their dreams of a perfect family will shatter like glass. Years later, the truth will need to be put back together again, piece by piece.