An escaped murderer flees France to England, where he forces an ex-forger, now established as a reputable estate owner, and the forger's daughter who knew nothing of his past, to counterfeit 5-pound notes for mass distribution around the countryside.
When a robbery at a racetrack goes wrong ex-con Johnny Bannion is caught and sent back to prison. He won't tell the rest of the gang where he has stashed the loot leading to violent consequences.
When a woman inherits a valuable house, her nasty husband and his mistress plot murder. But the house has a protective poltergeist who thwarts the wicked pair.
Storyline Roger Henderson, the young son of a wealthy British gentleman, lives in one of those grand British country estates surrounded by huge gardens. When a Rembrandt painting is stolen from the vault in the basement of the mansion, Roger and John Wilson (young son of the butler) discover a secret tunnel leading from the vault to another building on the estate. They then set out on a dangerous mission to bring the smugglers to justice.
A British psychiatrist reads an amnesiac's (Maxwell Reed) brain waves and sees the mind of a killer.
Two men working on the docks close to London's Tower Bridge find the body of an unidentified man floating in the Thames. The police later identify the body to be that of a diamond courier from Holland. The police have to find his murderer, as well as the missing diamonds he was carrying.
A writer of murder mysteries finds himself caught up in a string of murders in London.
Dr. Decker returns from Africa after a year, presumed dead. In that year, he discovered a way of growing plants and animals to an enormous size. He brings back a baby chimpanzee to test out his theory. As he has many enemies at home, he decides to use his chimp, 'Konga', to 'get rid of them'. Then Konga grows to gigantic proportions and wreaks havoc all over London!
Routine tests on a traffic accident victim lead to shocking discoveries when the man's blood is found to be unidentifiable and x-rays reveal a disc embedded in his brain. His fabulous tale of being an escaped prisoner from an alien spaceship takes a turn for the sinister when the hospital staff realise that they're under a state of siege...
A yacht in the English Channel is helped to port - when the police arrive there are no crew, no papers and no clues. What is the mystery of the ghost ship?
Because she dials the wrong number, an old lady hears information which enables the police to solve a robbery and murder.
Several murders of nuclear scientists, that baffles Scotland Yard, occur in London about the same time that Bill Locklin, a special officer from the United States State Department, arrives to oversee the transfer of Professor Leon Dushenko, a Russian scientist who as fled the U.S.S.R. An attempt is made on Dushenko's life with a monkey's paw-print found at the scene.
While perusing the books of an engineering company, fastidious auditor Frank Manning encounters rum goings on when he is approached by a woman who claiming she is being blackmailed. She begs him to find certain letters and he eventually agrees. Having obtained the letters, he takes them to a specified address where, to his horror, he finds a man, fully clothed, dead in the bath.
A racketeer, deported back from America, faces murder charge and hatches jury rigging plot with accomplice. Cross and double-cross follow.
An atomic scientist is found floating in a river with a bullet in his back and a radioactive halo around his body. The radioactivity has put him seven-and-a-half seconds ahead of us in time. He teams up with a reporter to stop his evil double from destroying his experiments in artificial tungsten.
Two reporters are held hostage in old castle, by thief, looking for jewels, that he had buried, after robbing a local house.
When a surgeon discovers that his wife has a lover he plans murder.
Scotland Yard is called in when the effigy used in a Guy Fawkes Day celebration turns out to be the burned corpse of a real man.
A man tells his wife that the police are after him for having killed a bookie during an alcoholic binge, but that he is innocent and is being framed for the murder. The wife and her brother hide him and try to find out who the real killer was. The more they investigate, the more holes they begin to find in the husband's story.
What appears to be a cut-and-dried case of murder of an aging one time showgirl on Hampstead Heath by her lover is complicated by several factors, including a far more respectable paramour, and her insistence that a great inheritance was due her that nobody can verify.
