In 1859, idealist John Wickliff Shawnessey, a resident of Raintree County, Indiana, is distracted from his high school sweetheart Nell Gaither by Susanna Drake, a rich New Orleans girl. This love triangle is further complicated by the American Civil War, and dark family history.

This musical reworking of Too Many Husbands (1940), features Grable as a top singer and dancer who's been widowed by WW II. She marries her late husband's songwriting partner, Gower Champion, but the new marriage is thrown for a loop when Lemmon, her first husband, turns up very much alive and eager to see Grable.

Lorelei Lee is a beautiful showgirl engaged to be married to the wealthy Gus Esmond, much to the disapproval of Gus' rich father, Esmond Sr., who thinks that Lorelei is just after his money. When Lorelei goes on a cruise accompanied only by her best friend, Dorothy Shaw, Esmond Sr. hires Ernie Malone, a private detective, to follow her and report any questionable behavior that would disqualify her from the marriage.

Susan is about to be married, but the wedding may get called off after her fiancé summons three former beaus. Each reveals a different portrait of Susan: one describes her as a naive country girl who reluctantly becomes an actress, another paints a picture of a gay party girl and and the third describes a serious intellectual.

Left by a con man, Belle De Valle, a dancer, finds him again in gold-rush Alaska running an honest casino/dance hall.

A WW-II defense plant worker gets knocked out and dreams about helping the war effort in various ways, including solving a crime.