In November 1958, the American teenager Katey Miller moves with her parents and her younger sister to Havana. Her father is an executive of Ford expatriated to Cuba, and Katey is an excellent high school senior student that misses her friends. The family is lodged in a fancy hotel, where Katey accidentally meets the local teenage waiter Javier Suarez.
Singers Lorelei Lee and Dorothy Shaw travel to Paris, pursued by a private detective hired by the disapproving father of Lorelei's fiancé to keep an eye on her, as well as a rich, enamored old man and many other doting admirers.
A matchmaker named Dolly Levi takes a trip to Yonkers, New York to see the "well-known unmarried half-a-millionaire," Horace Vandergelder. While there, she convinces him, his two stock clerks and his niece and her beau to go to New York City. In New York, she fixes Vandergelder's clerks up with the woman Vandergelder had been courting, and her shop assistant (Dolly has designs of her own on Mr. Vandergelder, you see).