Jerry Lewis plays Norman Phiffer, a proud man in a humble life, who doesn't know that his girlfriend, Barbara, is heir to the Tuttle Department Store dynasty. Mrs. Tuttle, Barbara's mother, is determined to split the two lovers, and hires Norman in an attempt to humiliate him enough that Barbara leaves him. Will she ruin their love, or will he ruin her store?

Retired rodeo champion Jeff McCloud agrees to mentor novice rodeo contestant Wes Merritt against the wishes of Merritt's wife who fears the dangers of this rough sport.

The Bumstead family is off to see relatives in the country when Blondie runs into Charlie and Millie, an eloping couple needing her help.

Things get under way when Blondie Bumstead demands that her husband request a raise from his boss Mr. Dithers, so that she can afford to hire a maid. But Dithers has no time for any salary disputes: his construction firm is currently stuck with an unsaleable old mansion that is rumored to be haunted. To disprove this theory, Dithers asks the Bumstead family to spend a night in the crumbling old house, throwing a retinue of servants into the bargain.

Baby Dumpling, the six-year-old son of Blondie and Dagwood Bumstead disappears from sight during his first day at school. While Dagwood frantically combs the city in search of the boy, Baby Dumpling spents a nice, safe afternoon with poor little rich girl Melinda Mason, who with her new playmate's help arises from her sickbed to walk across the room for the first time in months.

Ollie falls in love with a woman. When he discovers she's already married, he unsuccessfully attempts suicide but he and Stan then decide to join the Foreign Legion to get away from their troubles. When they’re arrested for soon trying to desert the Legion—they escape a firing squad by stealing an aircraft.

Dagwood inadvertently gets cornered in to resigning. When his wife Blondie tries to ask Dagwoods boss Mr. Dithers for his job back, he ends up hiring her instead. This doesn't sit too well with Dagwood. Blondie's sister comes to visit, and Dagwood is put in a compromising situation with another woman.

Blondie and Dagwood are about to celebrate their fifth wedding anniversary but this happy occasion is marred when the bumbling Dagwood gets himself involved in a scheme that is promising financial ruin for the Bumstead family.

Longfellow Deeds lives in a small town, leading a small town kind of life. When a relative dies and leaves Deeds a fortune, Longfellow moves to the big city where he becomes an instant target for everyone. Deeds outwits them all until Babe Bennett comes along. When small-town boy meets big-city girl anything can, and does, happen.

An auto engineer and a professor's daughter pose as married servants in a mobster's mansion.

A rancher is murdered after discovering that 40 head of his cattle have been rustled. A neighboring family is accused of the crime and flees across the border, then tries to find the real killers to clear their name.