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

The boys are restaurant owners. In an attempt to pay off their business debts, they enter a cow milking contest.