Oh, Professor Behave!

Jack Parr hosts a variety program of comedic sketches.

Leon manages to get a new house in the country cheap, and the whole family finds out that a mysterious death occurred in it. No one but Leon wants to live there, and so, a wacky plan is conceived to make Leon change his mind about moving.

Billy works at a film studio where lots of things keep going wrong. First, while filming, the camera man and director nearly get dropped off a building. This stunt is funny and rather realistic. Second, Billy looks in a keyhole at what he THINKS is a lady taking a bath--and she's soon joined by a man!

A boat race rivalry erupts into comical danger.

Comedic mixups are inevitable when Leon Errol borrows a car.

The head of a big movie studio is pulling his hair out because the company is bankrupt unless they can find a writer for a smash comedy. An aspiring writer is awaiting outside the office and the producer agrees to see him. He listens while the writer tells his story and acts the numerous parts. The story is rotten, but the producer lets him escape while vowing vengeance on any other author who would read his story aloud.

Leon suspects something between his wife (Dorothy Granger) - talk about the pot calling the kettle black - and the milkman, who are actually talking about getting rid of the dog. Leon hires a detective. An escaped convict enters the house, knocks out Leon and ties him up in a sheet. The milkman picks up the sheet thinking it is the dog. Mrs. Errol realizes the mistake just before Leon is dropped off the pier.

Two girls are invited by one of the girls boyfriend's tight boss for dinner. On the way they stop for a cheap ice cream. But swinging doors, ventilators, cops and a brat make it nearly impossible to get the ice cream even close to the car where the rest is waiting.

Suburban Paradise Park becomes a heaven for social-minded Mrs. Alice Summers (Mary Boland), when she accidentally causes the apprehension of two bank robbers after walking into the bank during the robbery and one of the robbers, in taking money from her purse, left his fingerprints on the purse. She is made an honorary police captain and, with her society sisters sets about "keeping lawlessness" out of the town. From that point on, life becomes miserable for her hen-pecked husband Calvin (Ernest Truex).

A beautiful redhead (Myrna Dell) comes knocking on Leon's door demanding the return of a compact dropped accidently in his pocket while they were dancing. But his wife (Dorothy Granger) has already discovered the compact and thinks Leon bought it as a gift for her. And then, to no great surprise, the redhead's jealous husband makes an appearance. Leon, before he is cleared of any hanky-panky with the redhead, nets two black eyes.

Mr. Barry has a huge argument with his wife, and to make her jealous, he asks his valet to set him up with a pretty girl who is stranded in their neighborhood. He takes her out to dinner, but to his disgust he discovers that she lacks even one ounce of class and her table manners are frightening. Soon enough, Barrymore is reunited with his wife.

Leon (Leon Errol) and his friend Harry (Harry Harvey) tell their wives they are going on a fishing trip, but end up doing a bit of partying. Leon comes home and, to avoid answering questions, pretends to have amnesia. Mrs. Errol (Dorothy Granger) does not pretend to believe him.

The nosy antics of a honeymooner puts an unwed couple in the same room.

Rita informs Leon that, as a lark, he stole a valuable necklace at a dinner party the night before and she will return it, but Leon remembers nothing about it. Just then, as Leon is taking the necklace out of his pocket, Mrs. Errol arrives with Barbara, her cousin and Barbara's fiancee. Mrs. Errol decides to give the necklace to Barbara as a wedding present. Leon tells Rita he will retrieve the necklace and return it to her that night. That Leon ends up getting chased by a guard dog and accused by Dorothy of philandering and Rita is a crook is a foregone conclusion.

Casper is the baby-expert at a large department store and his life is less than peaceful as he provides much amusement for the babies at his own expense. On Sunday, he and his wife go on a picnic with the neighbors and hoe comes home on his day of rest with three traffic tickets and numerous stings from the hornets he failed to amuse.

When the murdered body discovered by beautiful, vivacious socialite Melsa Manton disappears, police and press label her a prankster until she and her group of friends prove them wrong.