Deranged scientist, Gustav Niemann, escapes from prison and overtakes the director of a traveling chamber of horrors, soon reviving the infamous Count Dracula, the frozen Frankenstein Monster, and the Wolf Man.

B-movie film noir take on Crime and Punishment. A college student gets deeper and deeper in trouble when he takes a loan from a shady college professor.

University professor George Kingsley is struck by gangsters while crossing the street, leaving him with brain damage and one of the gangsters, Cannon, paralyzed. Kingsley's friend Dr. Sovac attends to both men, and when Cannon offers him a reward for aiding his recovery, Kovac transplants part of Cannon's brain into the dying Kingsley's skull, creating a dual personality.

Greedy heirs wait in a mansion for a rich cat lover to die, only to learn her cats come first.

After bringing his beautiful new wife Paula home to America from a remote island on which she was raised, Professor Norman Reed begins to feel the clash between his world of rational science and hers of bizarre dancing and freaky voodoo rituals. Norman's stuck-up friends also sense Paula's strangeness, and soon their meddling gossip and suspicious scheming push the poor woman to use her magic to defend herself and her husband – and maybe even to kill! Or is it just the power of suggestion...?

Eying a large inheritance, a reporter marries a rich woman with failing health. When she begins feeling healthy after the wedding, the reporter takes drastic measures to make sure his wife dies.

A mysterious plague, the Purple Death, ravages the earth. Dr. Zarkov, investigating in his spaceship, finds a ship from planet Mongo seeding the atmosphere with dust. Sure enough, Ming the Merciless is up to his old tricks. So it's back to Mongo for Flash, Dale, and Zarkov.

Young artist Monte Crandell is being sued for an unauthorized caricature. To escape arrest, he disguises himself as a mystic, only to conjure up a genuine ghost during a seance. Things come to a head during his trial, where the invisible ghost takes the witness stand on Our Hero's behalf.

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.

An arson investigator goes undercover to break up a ring that sets fires in order to collect the insurance.