The story follows two showgirls, and best friends, Dorothy Shaw (Jane Russell) and Lorelei Lee (Marilyn Monroe). As it starts off Lorelei and her fiance, Gus Esmond, were going to travel to France in order to get married. However, since Gus's father, Edmond Sr., disapproves of Lorelei, he prevents them from going. Despite this, she decides to go anyway, taking Dorothy along with her. Before their trip, Gus tells Lorelei to behave herself while in France or his father might find out and prevent their marriage from even happening. This is not untrue as the old man has hired a detective, by the name of Ernie Malone, to watch her every move.