Christine Hunter kills an intruder and tells her husband and lawyer that it was an act of self-defense. It’s later revealed that he was actually her lover and she had…

Scion of the once-rich Mitchell family, Herbert Wynn is found shot to death. Nurse Adams, bored by hospital routine, is recruited by the police to ferret out clues as she…

A husband and wife detective team takes on the search for a missing inventor and almost get killed for their efforts.

When Charlie’s old friend from Scotland Yard is murdered when they attend a police convention in New York, Chan picks up the case he was working on.

A producer decides to reopen a theater, that had been closed five years previously when one of the actors was murdered during a performance, by staging a production of the…

Private eye Jerry Church is hired by a criminal defense lawyer after five mobsters he has gotten acquitted are apparently strangled by a serial killer.

Lots of slogans such as “Be like Dad, Keep Mum” and “Keep it under your Hat” are visible on the walls in various scenes to reinforce the plot of this…

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…

A woman uncovers deadly secrets when she visits her late husband’s family.

While reading his favorite comic book, Daffy accidentally knocks himself unconscious and dreams he’s Duck Twacy, famous detective, trying to solve the case of the missing piggy banks. Taking a…

The Falcon travels to Mexico where he gets involved with murder and a mysterious painting.

Charlie is hired to deliver a pearl necklace to a millionaire at his ranch. When murder intervenes he disguises himself as a Chinese servant and begins sleuthing.