Hard-boiled newspaper reporter Larry Doyle (Robert Armstrong) goes a bit too far in celebrating a work bonus and wakes up on a train bound for St. Louis with only a buck on his person. To remedy the problem, Doyle pawns the revolver he's carrying. When the gun is subsequently used in a murder, Doyle's problems only multiply. In the meantime, he's also fallen in love with a comely stranger (Maxine Doyle) he convinced to impersonate his wife.

A reporter helps the police investigate the murder of a disagreeable and philandering actor who is found strangled to death in his theater dressing room with its door and window locked from the inside.

Drummond's wedding with Phyllis is interrupted when the inspector guarding their gifts is killed. He tries to trace the killers and uncovers the mystery of diamond counterfeiters.

Pepe Le Moko is a notorious thief, who escaped from France. Since his escape, Moko has become a resident and leader of the immense Casbah of Algiers. French officials arrive insisting on Pepe's capture are met with unfazed local detectives, led by Inspector Slimane, who are biding their time. Meanwhile, Pepe meets the beautiful Gaby, which arouses the jealousy of Ines.

Cosmo Jones, a correspondence-school detective from a small town, comes to the big city to offer his services to the police. He happens by where a gangster is killed by an opposing gang. Socialite Phyllis Blake is running around with gang member Tom and the opposing gang plan on kidnapping her. Cosmo is with Sergeant Flanagan when the attempt is made in front of a night club, where a bystander is seriously wounded in the gun-battle. Police Chief Murphy blames Flanagan for the shooting and demotes him. Cosmo, with the aid of a porter, Eustace and Flanagan's fiancée, Susan, tries to find the killer. Phyllis is finally kidnapped and Cosmo decides the act was committed by one of the two gangs. He has her father place an ad in the newspaper that contact has been made with the kidnappers. Each gang thinks the other is pulling a double cross, and one gang wipes out the other.

A man wrongfully convicted of murder escapes custody and goes in search of the real killer. The problem is that he only has one clue to go on.

After Sheriff Ken puts money in the safe, his brother Clem gives Rawhide the combination. With the money gone the disgruntled townsmen make Boots Sheriff and lock up Ken. Clem, now a prisoner of Rawhide, has a change of heart and sends Ken a message with the outlaw's location. Ken escapes by impersonating the saloon entertainer and rides for the hangout.

Philo Vance, accompanied by his prize-losing Scottish terrier, investigates the locked-room murder of a prominent and much-hated collector whose broken Chinese vase provides an important clue.

Gangster Chandler and his accomplice Tracy arrive at a dude ranch. Cowboy Kentucky arrives at the same time. When Tracy double-crosses his boss and has the stage robbed, Kentucky finds the outlaws and brings them in. Tracy frames him for the murder of the driver but his pal Cactus gets him out of jail. He returns just as Chandler shoots Tracy and Kentucky finds himself arrested for another murder.

Former lovers get together to clear themselves when the police suspect them of murder.

A man is convicted of killing his boss, whom he suspected of having an affair with his wife. On board the train taking him to prison for his execution are a reporter, who is dying of lung cancer and wants to interview the condemned man--and who also has some inside knowledge of the circumstances of the man's case. Also aboard is the prisoner's wife, who doesn't believe her husband is a killer and desperately wants to talk to him about it but he refuses to speak to her.

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...

A feud between two gangs in Chinatown breaks out into a tong war.

Investor Robert Norman murdered before meeting. Police investigate. Journalist Claire Haines pursues story to impress editor. Intertwining narratives of crime solving and reporting unfold.

A handsome radio singer has it all--fame, money, adoring fans--but what no one knows is that his accompanist, a hunchbacked piano player, is actually the voice behind the arrogant, abusive "singer"'s fame. The two men fall for the same girl, and when the singer turns up dead, suspicion falls upon his assistant and the girl.

A phony spiritualist hypnotizes the daughter of a wealthy banker in a scheme to swindle the banker out of his money. A reporter investigating the swami discovers the plot, determines to expose it.

A colonial police detective in an Eastern seaport seeks a stolen gem, and infiltrates the underworld by posing as a look-alike wharfside bar owner.

All 12 jury members who sent an innocent man to the gallows are gathered together for a demonstration of how convictions can be made on circumstantial evidence. During the proceedings, a phony murder is quickly revealed as the real thing.

An airliner makes a forced landing at night in the desert. The passengers and crew take refuge in a nearby deserted house. Soon some of the passengers are found murdered, and one of the passengers reveals himself to be a detective who was guarding one of the murdered passengers, who was carrying a bag of diamonds--which is now missing. The detective must find out which of the passengers is the killer.

Cub reporter Daniel Greely gets a job on a big city newspaper. A string of robberies occur and the owner of the paper blames the police for not rounding up the crooks. Daniel discovers that a coded message in the newspaper's editor's box tips the crooks about each robbery.

Drummond's girlfriend is kidnapped by his enemies and he along with his friend Nielsen, an inspector from Scotland Yard, follow the trail and try to rescue her from the kidnappers.

Young David Morton, heir to millions, has been over-zealously restrained from normal youthful activities by his two old-maid Aunts, Harriet and Agatha. In an outburst from his confinement, he meets lovely Gertrude, and promises to race her injured-brothers car in the Big Race. Between the gangsters trying to win the race by disabling him, and his bungling bodyguards trying to bring him home safely, David has a battle to win the race and Gertrude's heart.

Scheduled for demolition, Hotel Continental has seen 50 years of romance, intrigue, and tragedy. The last night attracts many nostalgic patrons, including a gangster planning to grab the loot that he hid there many years ago.

A man is determined to find the real culprit behind the crime for which his father was wrongly executed.

During a séance at an elderly millionaire's house, the millionaire is murdered. The detectives investigating the crime discover that everyone who was at the séance had a motive for killing the man.

A pair of detectives investigates the murder of an elderly millionaire who was the target of blackmail and death threats and find that there is no shortage of suspects, many of them in the victim's own family.

Prizefighter Bob Neal (Ray Walker) is in debt to gangster Vic Santell (Hooper Atchley) for training expenses. Santell orders Bob to take a dive in the fourth round so Santell can recoup prior gambling losses. Taunted by his ring opponent, Bob wins the fight. Realizing that his profession and underworld characters connected to it are causing him problems, Bob decides to join the police force. After taking nurse Mary Prentiss (Geneva Mitchell) to a drive-in restaurant where the total bill is a depression-era cheap eighty-two cents, Bob and his fellow officers round-up a gang of fur thieves in a warehouse shoot-out.

Dan Adams resigns his position as prosecutor on the district attorney's staff and sets out to clean up a gang of fake-accident racketeers. He gets a job with an insurance company, and assures the company president he will get the goods on the gang or die in the attempt. At the company offices, he meets Carol Carter and she, believing he is a shyster (possibly redundant) lawyer in the employ of the racketeers gives him as little help as possible. Dan visits his brother Eddie, who is mixed up with the gang and tries to make him break away. Eddie is belligerent but finally, because of the pressure brought by Dan and his wife Tonia, agrees to go straight. The gang, led by "Duke" Trotti, fears he will squeal and they kill him, plus they make his death look like an accident and plan to collect on it. Dan is closing in on the gang when Carol, who is now his assistant, comes up with some conclusive evidence, but "Duke" has plans to get rid of her before she can give the information to Dan.

Drummond manages to save a woman from jumping in front of his car but she runs away with his car. He traces her and she asks him to help her out of a dangerous situation.

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