The 5th Earl of Torgreave, Rupert Manningford, has conceived a desire to reform his rakish ways and become a model aristocrat. His careful plans are destroyed however when Miss Cordelia Tyninghame of Edinburgh arrives unexpectedly, by the connivance of his housekeeper, at his London home. Unwittingly Delia's arrival reveals a remarkable secret; their lives will be forever altered by that secret and the love they discover.