 Childhood friends Tracy Lord and C.K. Dexter Haven ( Grace Kelly (I)  (qv) and  Bing Crosby  (qv)) got married and quickly divorced. Now Tracy is about to marry again, this time to a shrewd social-climbing businessman. Bing still loves her. Spy magazine blackmails Grace s family by threatening to reveal her playboy father s exploits if not allowed to cover the wedding. The movie portrays the lifestyles of the rich with a good dose of humor and jazz provided by  Louis Armstrong (I)  (qv) and his band.