A criminal mastermind known as The Crimson Ghost is out to steal a device called the Cyclotrode, which can short-circuit all electrical current on the planet.

Chuck Scott gets a job as chauffeur to tough guy Eddie Roman; but Chuck's involvement with Eddie's fearful wife becomes a nightmare.

A facially disfigured and mentally unhinged man wreaks his revenge on those he blames for his condition.

Soon after a veteran returns from war, his cheating wife is found dead. He evades police in an attempt to find the real murderer.

Private Investigator Philip Marlowe is hired by wealthy General Sternwood regarding a matter involving his youngest daughter Carmen. Before the complex case is over, Marlowe sees murder, blackmail, deception, and what might be love.

Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

The proprietor of an ice-skating revue promotes a peanut-vendor to a management position based on suggestions he made to improve the act of the show's star, who also happens to be the owner's wife. However, he soon begins to notice that his new manager is paying more attention to his wife than he believes is appropriate.

Marine veteran Johnny Christopher meets and is immediately drawn to beautiful Evelyn Smith one day on the beach. Evelyn's new job as secretary to a U.S. senator in California soon brings unexpected intrigue and trouble for her and Johnny. The machinations of a sinister group of Nazi spies lead to mysteries and mistaken identities, and the two soon find themselves framed for murder!

George Taylor returns from WWII with amnesia. Back home in Los Angeles, he tries to track down his old identity, stumbling into a 3-year old murder case and a hunt for a missing $2 million.

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.

An attorney enraged over the prosecution of two innocent people goes on a killing spree.

In San Francisco's Chinatown, Charlie helps two different people search for their missing relatives and uncovers a murder for insurance scheme.

Novelist and amateur sleuth, Paul Temple, meets a newspaper woman called "Steve." Together they investigate a gang of diamond robbers.

Rancher "Utah" Neyes crosses the border into Canada to meet his partner, only to find that the latter has been murdered by a gang led by "Nails" Nelson. "Utah", with the aid of RCMP Jack Craig and fur-trapper Ivy Jenkins, manages to clear his own name of suspicion and also break up Nelson's fur-stealing and smuggling racket.

In 1940s Los Angeles, when womanizing composer Keith Vincent is found dead, the inquest concludes it was a suicide but police detective Joe Warne isn't so sure.

A con artist falls for the rich widow he's trying to fleece.

A daily news editor recalls a married detective and the deadly woman behind his downfall.

Canadian Mountie investigates a murder posing as a criminal.

A private detective is hired to find a young heiress but finds himself accused of murder.

Slip gets fired from his job at a construction company for decking his boss. His sister, who got him a job at the company, is angry with him. Slip manages to get a job with the District Attorney serving warrants, as does Sach. Through his job, Slip finds out that all is not quite kosher at his old construction company, and that his sister may be in danger.

Private eye Phillip Marlowe wants to get out of the detective racket and into crime writing. But when he's called to the office of editor Adrienne Fromsett, it's not to talk about his story ideas — she wants him to locate the missing wife of her boss, Mr. Kingsby. The assignment quickly becomes complicated when bodies start turning up.

An unsuccessful sculptor saves a madman named "The Creeper" from drowning. Seeing an opportunity for revenge, he tricks the psycho into murdering his critics.

In the midst of Nazi air raids, a postman dies on the operating table at a rural hospital. But was the death accidental?

Two actors who play detectives on the radio find themselves investigating a real crime masterminded by an arch-criminal named the Cobra.