Thelma rushes into the apartment she shares with Patsy, excited because she's fallen in love with Archie, a rich man with yachts and a British accent. Patsy isn't impressed and less so when Archie comes calling. She does her best to sink the romance, making noise while the lovers talk and offering Limburger cheese sandwiches. In desperation, Archie calls his brother Benny, who's a sailor, and asks him to keep Patsy company. After a series of mishaps, they end up at a saloon where Patsy orders everything on the menu. Who's going to have to pay?

At a ritzy beauty salon, while a mud pack is on her face, a wealthy socialite invites Thelma and Patsy, two salon attendants, to a party, mistakenly thinking they are social acquaintances whom she wants to entertain a visiting count. Just before our working-class pair arrives at the party, the hostess is called away to see to an ill dog. Thelma tries to behave in a refined way, but Patsy, with a head full of practical jokes and a bra filled with trick gadgets, turns the party on its head. The butler calls the hostess back to her home. Is Thelma and Patsy's moment in high society coming to a crashing end?

The girls win a car in a raffle.

When Thelma is stopped by a cop for speeding, she tries to get out of it by telling him that she and Zasu are on their way to the hospital.

A demoted reporter (George Brent) and his girlfriend (Brenda Marshall) seek to expose a crime kingpin.

With no other prospects, a World War I veteran puts the skills they taught him in the War to use.

Carmelita Fuentes is a fiery-Latin singer/dancer in Mexico City who has designs on Dennis Lindsay, an American publicity agent, for unclear reasons, while Lindsay's shiftless uncle Matthew Lindsay aids and abets her every step of the way to the marriage altar.

Terry is the chief car tester for Emery Motors and Frank is an Engineer. Jane has just been hired to work in publicity. Frank and Terry both want Jane to be their girl. Terry has designed a new carburetor that should bring him fame and money, but he cannot get it to work correctly. Terry and Gadget have tested it for over a year, but it still is not perfected. Emery Motors assigns Frank to help Terry with the carburetor, but Terry is not happy because Frank is an Engineer and is also vying for Jane. They finish the carburetor, and to test it, they enter a car in the Indianapolis 500 race. Terry is not yet satisfied with the carburetor before the big race even though it has passed all the tests.