The police arrest a man climbing over the wall of a cemetery after midnight. He claims that he is being blackmailed and is following instructions he received by mail to leave $1000 on a certain grave. It turns out that he's not the only one who got a blackmail letter from the same person--calling himself "The Black Panther"--and it also turns out that all the recipients are connected to an opera company.

Karl Anton Verloc and his wife own a small cinema in a quiet London suburb where they live seemingly happily. But Mrs. Verloc does not know that her husband has a secret that will affect their relationship and threaten her teenage brother's life.

A young woman finds herself as the intended victim of a murder plot on a transatlantic flight from London to New York.

A gang of criminals, which includes a piano player and an imposing former convict known as 'Gruesome', has found out about a scientist's secret formula for a gas that temporarily paralyzes anyone who breathes it. When Gruesome accidentally inhales some of the gas and passes out, the police think he is dead and take him to the morgue, where he later revives and escapes. This puzzling incident attracts the interest of Dick Tracy, and when the criminals later use the gas to rob a bank, Tracy realizes that he must devote his entire attention to stopping them.

A group of thugs tries to steal the cursed title gem from a jeweler who has been hired to cut it into small, saleable pieces.

An escaped World War 2 Nazi doctor impersonates a murdered English doctor so he can work on a vaccination to protect the Germans in their planned germ warfare.

A federal agent's life is in danger when he's exposed while investigating a parole scheme.

A couple of naïve girls get themselves unwittingly involved in the gambling racket in this Poverty Row production directed by the redoubtable Phil Rosen.

Bank teller Barry Webster is driven to stealing bank funds by his mother-in-law who continually nags him about forcing her daughter Muriel to live in poverty...

Two rival newspapers are engaged in a circulation battle, complicated by the fact that a vicious gangster inserts himself into the middle of it. Also complicating matters is that one newspaper's editor and circulation director are competing for the affections of a pretty blonde reporter.

When two showgirls decide to leave South America and head for home, they sweet talk the purser of a clipper ship into giving them berths. In the course of the voyage, a band of thieves attempts to take over the ship and make off with its cash cargo. The heroic purser has other ideas and weighs in to save the day.

Jim Cole, heir to a mining operation, takes over the mine, which is suffering from unexplained low production, and is facing a strike by the miners. Jim will soon loose the mine if production doesn't increase and the sabotage continues. Mary Norsen, office-secretary, accidentally learns of a plot by Fred Johnson to wreck the mine and force Cole to sell his coal-mine. She and her brother, Joe, join Cole in his fight to stop Johnson.

Vincent Lubeck is a vicious ex-convict. His criminal activities are despised by his family, but he uses and abuses them in the course of his crimes. Eventually his own brother must stand up to him.

A California railroad agent hunts two brothers for murder and robbing a payroll express.

A innocent dentist is murdered and the only apparent motive seems to be to steal a set of dental x-rays. To the police it looks like an accident, but private eye Brad Runyan thinks there's more to it.

A bedridden and gravely ill man believes his wife and doctor are conspiring to kill him, and outlines his suspicions in a letter.

The constant battling over the same woman gets two detectives demoted to what's considered the toughest job in the Police Department--the Riot Squad.

An ex-American GI returns to Italy to find some money he stashed before doing a prison term. He discovers his cash is now gone and quickly sets off on a manhunt to find out who stole his buried fortune.

Prizefighter Jimmy Nolan, facing an opportunity to get a championship fight, is knocked out when he sustains what is apparently a permanent injury to his arm. From there, Nolan's path leads downhill. He is drawn into a romance with a nightclub entertainer, then is framed on a theft charge by a jealous suitor. After his prison term, Nolan makes a spectacular comeback in a fight which proves his courage and integrity, while disproving the fallacy about the old sports adage that "they never come back."

A sailor falls for a gangster's moll, leaves his wife and finds himself caught up in a life of crime.