Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.

A husband-and-wife detective team look into the murder of one of her friends, whose father–a prominent scientist–has been kidnapped. They find themselves up against a sinister crime organization headed by…

A mad bomber holds an innocent family hostage.

Artist David Stuart is blinded by a jealous model whose portrait he is painting. His fiance’s father generously offers his eyes for a sight restoring operation. There’s only one hitch:…

A killer hides out in a small-town boarding house.

Four people recount different versions of the story of a man’s murder and the rape of his wife.

A married woman and a drifter fall in love, then plot to murder her husband.

A murder has occurred at Gruesome Gables, and the dog detective trying to find the killer has to deal with some suspicious suspects and a haunted house.

A crooked police detective masterminds a robbery then fights to keep the stolen money.

A young girl is travelling to London to find work. Arriving at the station, she meets a man who has been stabbed by a member of a gang of crooks…

A New York doctor saves a chorus girl from a window ledge, twice, and rounds up racketeers.

After a detective is assaulted by thugs and placed in an asylum run by Professor Baum, he observes the professor’s preoccupation with another patient, the criminal genius Dr. Mabuse the…