Dr. Paul Carruthers is frustrated because he thinks his employers, Mary Heath and Henry Morton, have cheated him out of the company's profits. He decides to get revenge by altering bats to grow twice their normal size and training them to attack when they smell a perfume of his own making. He mixes the perfume into a lotion, which he offers as a gift to Mary and Henry. When they turn up dead, a newspaper reporter decides to investigate.
The life of Al Roberts, a pianist in a New York nightclub, turns into a nightmare when he decides to hitchhike to Los Angeles to visit his girlfriend.
An adolescent believes that his widowed mother's suitor may have murdered his father.
Mad scientist injects his enemies with acromegaly virus, causing them to become hideously deformed.
Circumstances force naive Rita Adams into serving an unjust prison term, but she emerges from it a cynical criminal who rises to power in the local crime organization.
Head over heels in love with a stern and cold older businessman's young wife, a reporter is seduced into conspiring to murder him so she can inherit his estate, while pinning the murder on another businessman.
As a woman walks the "last mile" to her execution she remembers back to the incidents that got her framed for murder.
Williams is out to stop Ellen Goreham from completing her road that is under construction and is using a man to impersonate Billy the Kid. When Billy sees the wanted posters and learns of the murders he supposedly committed, he sets out to find the imposter. His sidekick Fuzzy is there to help him but his friend Jeff, now a Marshal, is also after him.
When a small town doctor buries his twin brother, a practitioner of the black arts, he believes him dead; but subsequent events force him to realize that his brother has, in fact, returned from the dead as a vampire and is seeking revenge on the doctor, who had killed him in self-defense.
Young female models are being strangled. Will law enforcement be able to stop the crime wave before more women become victims?
A man accused of planning a prison break turns the tables on escaped cons by leading the group into the desert.
One dark and stormy night, an escaped convict, an embezzler, a runaway daughter, her intended and her father, and a gangster take refuge in a remote inn called "The Black Raven" after the nickname of a second gangster who owns it; and murder ensues.
A crusading district attorney tries to stop a local mob boss who has connections in high places.
An evil sea captain and the forces of nature threaten two divers' search for a fortune in gold in the South Pacific.
A mad scientist changes his simple-minded handyman into a werewolf in order to prove his supposedly crazy scientific theories - and exact revenge.
Billy the Kid and Fuzzy Jones are on their way out of Arizona being chased by some riders who hope to cash in on the reward money for their capture. They are warned in time by Ed Dawson, but Ed is wounded in the getaway. They get a doctor to attend to Ed. The latter tells them there is a range war in progress across the border and that he is looking for men to help make a cattle drive to the rail junction.
American correspondent Mike Malone uncovers a Nazi plot for an uprising of the Arab tribes in Lybia. Pursued by Sheik David and his men, Mike takes refuge in the suite of Nancy Brooks, who is in the British Intelligence. He asks her to hide a gun and escapes through a window. Reporting the affair to British Consul Herbert Forbes, the latter tries to discourage him from further investigation, as the British are aware of the plot and are planning on staging a coup. He goes with Mike to Nancy's apartment, and she denies having ever seen him before. Sheik Ibrahim, next in command of the Arab tribe to Sheik David, is plotting with Nazi agent Yussof Streyer to kill David who is friendly with the British. Mike and Nancy have gone to David's camp, escape from Ibrahim's henchmen, and get back to El Moktar before the Arabs attack the garrison.
During World War II, Chinese guerrillas fight against the occupying Japanese forces. A young woman is the secret leader of the villagers, who plot to rescue two downed Flying Tigers pilots who are currently in the custody of the Japanese. The rescue mission takes on even more importance with the arrival of a Japanese general, which signals a major offensive taking place in the area.
A woman - raised in the jungle - tries to help an American stop a native uprising spurned on by Nazis.
Leo, a former convict, is living in seclusion on an island with his step-daughter, the daughter of his late wife. Leo was framed by a group of former business associates, and he also suspects that one of them killed his wife. He has invited the group to his island, tempting them by hinting about a hidden fortune, and he has installed a number of traps and secret passages in his home. He is aided in his efforts by a former cell-mate who holds a grudge against the same persons. When everyone arrives, the atmosphere of mutual suspicion and the thick fog that covers the island promise a tense and hazardous weekend for everyone.
