A ship company employee, Jay Williams, is sent to Florida where one of the company cruise ships is stuck on a reef off of the coast. He obtains waivers from all of the passengers with the exception of Nan Spencer, a department store salesgirl who wants her vacation now, not later. Jay is instructed to take Nan to Havana, set her up in the best hotel, and keep her entertained. She visits a nightclub where the star attraction is Rosita Rivas and meets Rosita's worthless manager, Monte Blanca, who makes a play for her. Trouble also comes in the form of Jay's fiancée, Terry McCracken, when a romance develops between Nan and Jay.

In Rio de Janiero to arrest a nightclub singer on suspicion of a murder in Hawaii, Charlie Chan becomes involved with the Rio police in solving the singer's own murder.

After losing nearly all of an inheritance to taxes, sisters Kay and Barbara Latimer, waitresses at a drive-in restaurant in Texas, scheme to find rich husbands. With the aid of their aunt Susan, the sisters take the last of their money and head to a well-known Miami resort where they soon meet two wealthy young men, Phil and Jeff, who begin a fierce rivalry for Kay, not realizing that Barbara has fallen in love with one of them.