This Western spoof stars Richard Widmark as an American gambler who wins the deed to a Mexican ranch from a cunning outlaw. At the ranch, the gambler discovers that his new lands have entangled him in an ancient Aztec curse. The ranch's patriarch tries to persuade the newcomer to marry his daughter and explains that the family's women are doomed to be especially fierce and prolific in their romantic encounters.

Scat Sweeney and Hot Lips Barton, two out of work musicians, stow away onboard a ship bound for Rio, after accidentally setting fire to the big top of a circus. They then get mixed up with a potential suicide Lucia, who first thanks them, then unexpectedly turns them over to the ship's captain. When they find out that she has been hypnotized, to go through a marriage of convenience, when the ship reaches Rio, the boys turn up at the ceremony, in order to stop the wedding, and to help catch the crooks.

A female hustler is chasing after rich men, but becomes repeatedly mixed up with a suave con man and card shark through a series of misadventures before falling in love with him.

Anne and "Poppy" Rose have three quirky kids. Anne has a generous heart and the belief in the innocence of children. To the unhappy surprise of her husband she takes in the orphan Jane, a problem child who already tried to kill herself once.