Ida Stassen
A social misfit, Willard is made fun of by his co-workers, and squeezed out of the company started by his deceased father by his boss. His only friends are a couple of rats he raised at home, Ben and Socrates. However, when one of them is killed at work, he goes on a rampage using his rats to attack those who have been tormenting him.
Manicurist (uncredited)
Jerry Webster and Carol Templeton are rival Madison Avenue advertising executives who each dislike each other’s methods. After he steals a client out from under her cute little nose, revenge prompts her to infiltrate his secret "VIP" campaign in order to persuade the mystery product’s scientist to switch to her firm.
Doctor's Wife (uncredited)
A single mistake puts a 19-year old girl behind bars, where she experiences the terrors and torments of women in prison.
Evelyn
A young woman from Kansas (Ann Miller) arrives in Hollywood with hopes of a movie career.
Mamie the Secretary
A gangster is drafted into the Army and, soon realizing how wrong his life of crime has been, agrees to help the FBI break up a black market ring by pretending to have been kicked out of service and to have resumed his old life of crime.
Mrs. Polly Kennedy
Edgar is running for county supervisor against his mother-in-law. Edgar, whose campaign is going nowhere, decides to try some dirty-tricks style tactics but, as usual, everything backfires on him.
Mrs. Kennedy
Edgar Kennedy, in order to attend a prizefight without his brother-in-law, pretends to be sick with intentions of sneaking off later. As usual, his best-laid plan takes another direction. His mother-in-law gives him a foot bath in a tub with what turns out to be quick-setting cement. His pal Sam drills a hole in the cement to blow the cement off with explosives, with a typical-Kennedy result... disaster.
Kitty Callahan
Rodeo champ Gene Autry inherits half interest in both a ranch and a mine that provides steady employment for the surrounding rancheros. Unfortunately, the other half goes to Easterner Barbara Erwin (Carol Hughes), who is only interested in monetary remuneration. To convince Gene to buy her share, Barbara enters into an unholy alliance with unscrupulous attorneys Arnold (Ivan Miller) and Fry (Sam Flint), who, without their client's consent, hire a gang of thugs headed by Tommick (John Merton). When a ranchero (Elias Gamboa) is mortally wounded in the ensuing gun battle, Barbara sees the error of her way and switches sides.
Social Secretary (uncredited)
It's no accident when wealthy Charles falls for Jean. Jean is a con artist with her sights set on Charles' fortune. Matters complicate when Jean starts falling for her mark. When Charles suspects Jean is a gold digger, he dumps her. Jean, fixated on revenge and still pining for the millionaire, devises a plan to get back in Charles' life. With love and payback on her mind, she re-introduces herself to Charles, this time as an aristocrat named Lady Eve Sidwich.
Young Girl
Dr. Bernard Adrian is a kindly scientist who seeks to cure a young woman's polio. He needs human spinal fluid to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing the townspeople. Can there be a connection?
Switchboard Operator (uncredited)
Told in flashback, Depression-era bum Dan McGinty is recruited by the city's political machine to help with vote fraud. His great aptitude for this brings rapid promotion from "the boss," who finally decides he'd be ideal as a new, nominally "reform" mayor; but this candidacy requires marriage. His in-name-only marriage to honest Catherine proves the beginning of the end for dishonest Dan...
Bessie, Switchboard Operator
When a police officer is murdered, Captain Street looks to Mr. Wong to catch the killer. Prime Suspect: Frank Belden Jr., whose father is a businessman well known for both his success and dishonesty. Mr. Wong faces increasing danger and is nearly executed himself as the investigation develops in treachery and complexity. As Mr. Wong follows the trail of dead bodies, he uncovers a jewel smuggling ring on the San Francisco waterfront and a case much larger than the death of a police officer.