The Sinister Doctor Orloff

After recovering from injuries sustained in the mob attack upon himself and his creation, Dr. Henry Frankenstein falls under control of his former mentor, Dr. Pretorius, who insists the now-chastened doctor resume his experiments in creating new life. Meanwhile, the Monster remains on the run from those who wish to destroy him.

A rich but unscrupulous old woman plots with a scientist to have her brain implanted in the skull of a sexy young woman.

Dr. Bernard Adrian is a kindly scientist who seeks to cure a young woman's polio. He needs human spinal fluid to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing the townspeople. Can there be a connection?

A scientist is turned into an ape man.

The son of the inventor of a matter-transporter, which turned him into a monster when he tried to transport himself along with a tiny housefly, continues to pursue his father's experiment, while his own two sons attempt to extricate him, themselves and the family name from further disaster and scandal.

An American journalist stationed in Japan is given a mysterious injection by a mad scientist, turning him into a murderous, two-headed monster.

The entertainment duo Mitchell & Petrillo, en route to a USO show for troops in Guam, fall out of their plane and end up on the jungle island of Cola Cola, where the mad scientist Dr. Zabor is conducting evolutionary experiments.

When Dr. Von Altermann's wife Lila dies mysteriously at his spooky mansion her relations suspect murder. They also suspect the doctor is turning her into a zombie, to join the army of living dead he hopes to devote to the Nazi cause. However, Lila, though dead, has developed a will of her own.

A fugitive doctor tries to raise the dead for South Sea Islanders.

Dr. Eric Vornoff, with the help of his mute assistant Lobo, captures twelve men for a grisly experiment; His goal to turn them into supermen using atomic energy. Reporter Janet Lawton, fiancée of the local lieutenant, vows to investigate Vornoff's supposedly haunted house.

A doctor—on orders from a sentient brain—kidnaps intimate couples and takes them to his mansion as prisoners. He injects his subjects with a substance to 'enhance' their sexual abilities. The curious doctor then forces his hostages to have sex. While they are making love, he drains a fluid from them, which he needs to prevent himself from transforming into a monster.

A gang of young thieves flee Paris during the violent aftermath of a political election, only to hole up at an Inn run by neo-Nazis.