The novel features Ogden Ford and his mother Nesta (both previously encountered in "The Little Nugget". Nesta has remarried, to the hen-pecked, baseball-loving millionaire Mr. Peter Pett, and Ogden remains spoilt and obnoxious. The story takes its title from the charismatic character of Jimmy Crocker, Nesta's nephew and a reforming playboy. 'Jim' is called upon to assist in the kidnapping of Ogden, amongst much confusion involving impostors, crooks, detectives, butlers, aunts etc. - all in the name of romance of course. (Excerpt from Wikipedia)