Stanley is a bellboy at the Fountainbleau Hotel in Miami Beach. It is there that he performs his duties quietly and without a word to anyone. All that he displays are facial expressions and a comedic slapstick style. And anything that can go wrong - does go wrong when Stanley is involved. Then one day, Jerry Lewis, big star, arrives at the hotel and some of the staff notice the striking resemblance. Stanley continues to do what he was hired to do while star Lewis has more trouble with his entourage than the hotel accommodations.
Dodger Lane (Peter Sellers) has planned the perfect robbery while in prison. He intends to break out of prison, steal a fortune in diamonds, and break back into prison before anyone notices. With only a few days' sentence left, and the perfect alibi, what could possibly go wrong?
Collins College needs a new department head for their science department. Doctors Carter and Zorch consult Thinko, the campus computer, and come up with Dr. Mathilda West, who has degrees in lots of things, but turns out to be disruptively attractive as well. Meanwhile two thugs search for Sam Thinko who is muscling in on the race horse action, the captain of the football team is having trouble not passing out in front of the opposite sex, and Admiral McFortune, a benefactor of the college, becomes attracted to Dr. West, who has a past dangerously close to becoming public knowledge.