Much-married and once successful writer Henry T. Aythecliff, now heavily in debt, summons his three ex-wives to his mansion, planning to extort a sizable amount of money from each. When he is discovered dead, clues indicate that each of his four wives had motive and opportunity to murder him, and a young detective must sift through some ingeniously devised evidence.
A murdering skyjacker parachutes to safety and poses as a novice monk in an isolated New Mexico monastery.
After a popular singer dies in a mysterious auto accident, her fiancee assembles all those who were to attend there wedding, hoping to find her killer.
A young nurse reports to work in a hospital's psychiatric wing and gets involved in a series of mysterious deaths.
The wife of a TV executive thinks she might have committed a murder and is tormented by a stalker while locked inside an empty TV station.
A mystery writer's son is being held for $1 million ransom.
Celebrated as supersleuth, Mr. Moto comes out fighting when a brutal boxing match turns into cold-blooded murder! Assisted by detective-in-training Lee Chan, Moto sets out to track down the killer based on a single ominous clue: a poisoned boxing glove! But when Moto's hunch points to a corrupt gambling syndicate, he's forced to wager his very life to unmask the culprit—or go down for the count...permanently!
A multimillionaire is murdered, and his will leaves all his money to a beautiful young blonde. The murdered man's son thinks something is fishy, and a homicide cop sets out to find out who was behind the man's death. Complications ensue.
Sir George hires Hillary Gatt to find out more about Eric who wants to marry Lois. Gatt is murdered and the couple, married, run off to India. Old friend John Beetham sympathizes with the bride who sees that her hubby is a liar and drunk.
A young girl in Monte Carlo is engaged to a nobleman, but is really in love with someone else. A jewel thief named "The Black Spider" has been robbing the wealthy of Monte Carlo, and as a joke the girl steals her aunt's jewels. Unfortunately, a detective finds out and suspects her of being the real "The Black Spider".
The American consul in Zanzibar is informed that a fugitive American has just reached the African coast, and becomes suspicious of a newly arrived man from Boston, Massachusetts.
Norma, a dancer, receives many presents from admirers. Among them she finds a peculiar looking box, out of which spring several poisonous snakes. Nelson, a detective, is called upon to solve the mystery.
Bored by her hardworking husband, Tess goes to an illegal gambling den with a former suitor, Arthur Sinclair. The den is robbed and subsequently raided by police. Tess loses her rings and lies to her husband about her whereabouts. Her lies are exposed when the rings are found by the police. While trying to manage the fallout, she writes a compromising letter that is intercepted and used to blackmail her for $15,000. After being embroiled in further dangerous, fraudulent activity, her innocence regarding the robbery and associated crimes is established through the confession of a criminal named Peter Vanetti.
A murder is committed at a country mansion. All the guests present at the estate fall under immediate suspicion as investigators attempt to solve the mystery before they strike again.
12 part silent serial- 1. The Castle of Fear 2. The Spider's Web 3. The Vanishing Heiress 4. The Room Without a Door 5. Shots in the Dark 6. Ambushed 7. The Secret of the Coin 8. Into the Web 9. The Baited Trap 10. The Lady in White 11. The Closing Web 12. The Final Reckoning. A prequel to The Ace of Scotland Yard.
The plot is motivated by a pearl necklace, which has caused the death and/or ruination of all its owners. The second screen appearance of detective Charlie Chan.
A condemned man uses hypnotism on a judge. After the man's death, the judge finds himself acting like the condemned man.
Charlie Chan comes out of retirement to investigate a murder case aboard the yacht of a wealthy Greek shipping tycoon.
The abandoned Balfour House, the owner of which was found dead five years earlier, comes back to life with the arrival of two suspicious sinister-looking tenants.
Famous detective Charlie Chan is called out of retirement to help a San Francisco detective solve a mysterious series of murders. With his bumbling grandson as his sidekick, Chan also encounters an old nemesis known as the Dragon Queen who is the prime suspect.