Rosemary Fell was born into privilege. She has wealth, well-connected friends, and a handsome fiancé, Philip Alsop. Finally she has everything she wants. It is then, in a moment of beneficence, that Rosemary invites Eleanor Smith, a penniless young woman she sees under a streetlamp in the rain, into her home for a cup of tea. While there, Rosemary sees Eleanor exchange an unmistakable look with Philip, and she sends Eleanor on her way. But she cannot undo this chance encounter, and it leads to a tempestuous and all-consuming love triangle - until the tides of war throw all their lives off balance.