Dictator Adenoid Hynkel tries to expand his empire while a poor Jewish barber tries to avoid persecution from Hynkel's regime.

Perry Ashwell is a self-satisfied child psychologist who takes his colleagues and wife somewhat for granted. So confident is he of his position that he introduces rich attractive painter Octavio Quaglini to his office and home. Quaglini is no respecter of convention, and April Ashwell is extremely attractive.

Slip and Sach are in the sidewalk star-gazing business when they see a murder committed in a room at the El Royale Hotel.

A Brooklyn pier racketeer bullies boat-owners into paying protection money but two fed-up fishermen decide to eliminate the gangster themselves rather than complain to the police.

Jan Horak is a middle-aged railroad dispatcher stationed at a forsaken spot in the desert, within driving distance of the nearest town. A widower, he has saved his money and goes to town to buy a dog, meets Betty, a flashy blonde who gains his confidence and marries him to acquire his $7,000 "fortune."

Expecting the usual loss, a boxing manager takes bribes from a betting gangster without telling his fighter.

A seemingly charitable soup kitchen operator (who moonlights as a criminology professor) uses his Bowery mission as a front for his criminal gang. Police attempt to close in on the gang as they commit a series of robberies, murders and bizarre experiments on corpses.

The Bowery Boys find a lamp that has strange magic powers.

The boys get mixed up with a race horse & crooked gamblers

The boys are working at the local boxing arena where their friend, Jimmy Higgins, is boxing. During a crooked match Jimmy is killed. The boys seek out his older brother, Johnny, a former boxer who gave up the sport rather than go crooked, and help train him to get back in the ring. They try to get him a shot at the title, and when they do the same crooked gangsters that were behind Jimmy's death try to get Johnny to take a dive.