An undercover U.S. Immigration agent falls in love with an immigrant attempting to enter the United States through Havana, Cuba in an illegal smuggling ring.

Police Lt. Leonard Diamond vies to bring a clever, well connected, and sadistic gangster to justice all the while obsessing over the gangster's girlfriend.

The town's leading citizen becomes a homicidal maniac after his wife deserts him.

Frank Warren is a treasury agent assigned to put an end to the activities of a powerful mob crime boss. Frank works undercover, posing as a criminal to seek information, but is frustrated when all he finds are terrified witnesses and corrupt police officers.

Muggs is tricked into entering a Civilian Conservation Corps camp by Danny in order to get in shape. Muggs resists and battles with the camp captain and with other campers. He also becomes involved in trying to help one of his friends get out of trouble.

Sheriff Halliday doesn't approve of his children dating or marrying half-breeds and his blind hate threatens to alienate his whole family.

A prison convict escapes through the Louisiana swamps.

Inspector Cassin, a renowned Paris detective, departs to the country for a much-needed break. There he falls in love with the innkeeper’s daughter, Nanette, who is already betrothed to a local farmer. On the evening of their engagement party, Nanette and the farmer both disappear. Cassin takes up the case immediately to discover what happened to them and who is responsible.

A fugitive doctor tries to raise the dead for South Sea Islanders.

Julia Ross secures employment with a wealthy widow and goes to live at her house. Two days later, she awakens in a different house in different clothes and with a new identity.