When rich and imperious American widow Beatrice Chavender eats a forkful of inferior ham at her sister's country house near London, it affects the lives of everyone around her - her sister, her brother-in-law, her sister's butler, her sister's poor relation Sally, Sally's fiance Lord Holberton, and, most of all, Mrs Chavender's own one-time fiance, 'Ham King' J. B. Duff, whose rotten product spoils her breakfast.