Brodie Logan's seemingly idyllic life with her once-loving husband is suddenly turned upside down – so she moves to a big shared house in Liverpool, and there meets a remarkable group of people. Twenty-five-year-old Diana seems so innocent and childlike, yet she was responsible for raising her three younger brothers. But suddenly there is no place for her in the only home she has ever known. Vanessa, once a successful career woman, still can't get over the shock of an unexpected rejection. And Rachel, barely fifteen, with her baby daughter, Poppy, is determined to keep the child some people seem set on taking away from her. As they while away the brilliant summer under the trees in the lovely garden of the big house, friendships form that will last a lifetime – but there are troubles on the horizon; after all, nothing lasts forever ...