Kindly soup kitchen operator and professor of criminology Karl Wagner uses his soup kitchen as a front for a criminal gang who commit a series of daring robberies and murders. When things get out of hand, Wagner kills his henchmen, who wind up as zombies in the cellar of the soup kitchen.
Demonstrating that a little knowledge is a dangerous thing, a convicted strangler studies the paranormal and finds a way to render himself invisible. Once he escapes, he sets out to find and eliminate the five women who testified in his prosecution. A police lieutenant (Robert Foxworth) sets out to safeguard them, and bring the invisible killer to justice.
British Captain Terence Stevenson (Robert Donat) accepts an assignment even more dangerous than his everyday job of defusing unexploded bombs. Fluent in Romanian and German and having studied chemical engineering, he is parachuted into Romania to assume the identity of Captain Jan Tartu, a member of the fascist Iron Guard. He makes his way to Czechoslovakia to steal the formula of a new Nazi poison gas and sabotage the factory where it is being manufactured.
In this thriller, psychiatrist Dr. Cross (Vincent Price) kills his wife and expects to get away with murder, until he discovers that the slaying was observed by a next-door neighbor, Janet Stewart (Anabel Shaw). As Janet attempts to convince her husband (Frank Latimore) of the doctor's dastardly deed, Cross shows up to advise him that Janet is in dire need of some in-depth counseling.
Ray and Gilbert's fishing trip takes a terrifying turn when the hitchhiker they pick up turns out to be a sociopath on the run from the law. He's killed before, and he lets the two know that as soon as they're no longer useful, he'll kill again. The two friends plot an escape, but the hitchhiker's peculiar physical affliction, an eye that never closes even when he sleeps, makes it impossible for them to tell when they can make a break for it.
Bank teller Vince Grayson wakes from a nightmare in which he and an unknown woman murdered a man in a strange, mirrored room. Only a dream...but Vince finds that he has physical objects and bruises from his "dream." His cop brother-in-law dismisses his story...until the family, on a picnic, takes shelter from a thunderstorm in a deserted mansion containing that mirrored room.
When her husband John has a heart attack while out in a rowboat on the lake, Louise Haloran throws his body overboard and later tells the family that he has left on an urgent business trip. Her main concern is that she can only inherit a part of the family fortune if her husband is alive. The Halorans are a strange family, still grieving over the death of the youngest daughter Kathleen who drowned in a pond when she was just a child. They hold an annual ceremony of remembrance every year on the anniversary of her death. This year however, someone is wielding an ax intent on murder.
A Japanese man claiming to be Mr. Moto, of the International Police, is abducted and murdered soon after disembarking from a ship at Port Said in Egypt. The real Mr. Moto is already in Port Said, investigating a conspiracy against the British and French governments.
When the villagers of Klineschloss start dying of blood loss, the town fathers suspect a resurgence of vampirism. While police inspector Karl remains skeptical, scientist Dr. von Niemann cares for the vampire's victims one by one, and suspicion falls on simple-minded Herman Gleib because of his fondness for bats. A blood-thirsty mob hounds Gleib to his death, but the vampire attacks don't stop.
A gang of criminals, which includes a piano player and an imposing former convict known as 'Gruesome', has found out about a scientist's secret formula for a gas that temporarily paralyzes anyone who breathes it. When Gruesome accidentally inhales some of the gas and passes out, the police think he is dead and take him to the morgue, where he later revives and escapes. This puzzling incident attracts the interest of Dick Tracy, and when the criminals later use the gas to rob a bank, Tracy realizes that he must devote his entire attention to stopping them.
Mystery writer Cornelia Van Gorder has rented a country house called "The Oaks", which not long ago had been the scene of some murders committed by a strange and violent criminal known as "The Bat".Meanwhile, the house's owner, bank president John Fleming, has recently embezzled one million dollars in securities, and has hidden the proceeds in the house, but he is killed before he can retrieve it.
When legendary hunter Bob Rainsford is shipwrecked on the perilous reefs surrounding a mysterious island, he finds himself the guest of the reclusive and eccentric Count Zaroff. While he is very gracious at first, Zaroff eventually forces Rainsford and two other shipwreck survivors, brother and sister Eve and Martin Towbridge, to participate in a sadistic game of cat and mouse in which they are the prey and he is the hunter.