A timid, nearsighted chemistry teacher discovers a magical potion that can transform him into a suave and handsome Romeo. The Jekyll and Hyde game works well enough until the concoction starts to wear off at the most embarrassing times.
When his father dies, poor Fella is left at the mercy of his snobbish stepmother and her two no-good sons Maximilian and Rupert. As he slaves away for his nasty step-family, Maximilian and Rupert attempt to find a treasure Fella's father has supposedly hidden on the estate. Hoping to restore her dwindling fortunes, the stepmother plans a fancy ball in honor of the visiting Princess Charmein whom she hopes will marry Rupert. Eventually, Fella's Fairy Godfather shows up to convince him that he has a shot at winning the Princess himself.
Stanley is a bellboy at the Fountainbleau Hotel in Miami Beach, where he performs his duties quietly and without a word to anyone. All he displays are facial expressions and a comedic slapstick style. And anything that can go wrong, does go wrong when Stanley is involved. One day, Jerry Lewis arrives at the hotel and some of the staff notice the striking resemblance.
Poor Jerome Littlefield. He wants to be a doctor – but that's not exactly the perfect career choice when you're hopelessly squeamish. So he settles for the job of orderly at the Whitestone Sanitarium, a career move that's guaranteed to keep the patients – and viewers – in stitches!
Paramutual Pictures wants to know where all the money is going so they hire Morty to be their spy. Morty works for Mr. Sneak and gets a job in the mail room so that he can have access to the lot. But all that Morty ever finds is that he can cause havoc no matter what he does.
An artist has an opportunity to go to Paris and wants to bring his fiancee along. However, she's a psychiatrist who currently has three female patients who don't like men. So, he guises himself as three different men to gauge their trust and hopefully cure them so that his fiancee can go with him.
A fisherman crosses paths with a diamond-smuggling gangster–who is his doppelgänger—and inadvertently takes his place at a resort hotel where he meets a special girl.
Brendan Byers III, one of the richest men in America, has been pronounced 4-F and can't serve his country in its war against Hitler. Byers does not take "No" for an answer and recruits other 4-F's to fight against Hitler.
Told he is terminally ill, an insurance executive goes on a credit-card spending spree--and then learns his medical diagnosis was a mistake.