Street kids get sent to the country, where they get mixed up in murder and a haunted house.

Two ex-cons plan to kill the range rider marshal who sent them to prison and, when their plan fails, join forces with their former boss, a crooked saloon owner who has the same idea.

Young Alice Mason wishes to start a family, but because her own has been deemed "defective" by the state health authorities—her parents are lazy alcoholics who continue breeding, and her siblings are disabled, have mental problems or are imprisoned—she is ordered by a court to undergo sterilization so that her family's "defective genes" won't be passed on to any further. Her boyfriend Jim and a kindly priest search desperately for a way to stop the forced surgery before it's too late.

A group of delinquents on their way to summer camp get stuck in a haunted house.

A seemingly charitable soup kitchen operator (who moonlights as a criminology professor) uses his Bowery mission as a front for his criminal gang. Police attempt to close in on the gang as they commit a series of robberies, murders and bizarre experiments on corpses.

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.