The mirthful adventures of Police-Sergeant Samuel Dudfoot and his two constables, Albert Brown and Jeremias Harbottle, who stage a fabricated crime-wave to save their jobs---and then find themselves involved in the real thing.

Starts out with a tribe of African cannibals imitating Native Americans. After this, they do the new Warner Bros. Looney Tunes theme "The Merry-Go-Round Broke Down." Then a sloppy stuttering salesman knocks on their doors, and they bring him in and put him in a pot of boiling water. The queen of the tribe wants to see the man. She falls in love with him. They get married, but when the salesman sees he has to kiss the bride, he decides he'd be better off being dinner for a tribe of hungry cannibals.

A domineering money-bags' suppressed incestuous urges go into overdrive when her half-brother brings a new bride home to the family’s gloomy Fifth Avenue mansion. The title refers to a secret soundproofed chamber that the villainess uses to entrap her enemies.

A Depression-downtrodden waif uses her brains instead of her body to rise from tyro con artist to crime boss.

A range lawman (Ken Maynard) unmasks a black-cloaked phantom killer (Sheldon Lewis).

Two families embark on a pleasant Sunday picnic but manage to run into a variety of issues with their temperamental automobile. Each incident requires repeated exits and reboardings by Laurel, Hardy, their wives and grouchy, gout-ridden Uncle Edgar.