Hope Randall leads a quiet life, but that peace is about to be shattered. When a stranger turns up on her doorstop, bringing news of a half-sister she never knew she had, he's going to change her world for ever. Connie's in deep trouble and the mysterious Flint needs Hope's help in finding her. Returning to London, Hope is forced to confront old demons - and new ones. If Connie's going to be saved, Hope may have to get close to the enemy ...