Dr. Frankenstein and his monster both turn out to be alive, not killed as previously believed. But now he is forced to tempt fate once again by creating a suitable mate for his monster after a mad scientist, Dr. Pretorius, kidnaps his wife.
Professor Montserrat invents a machine that allows user to control the mind of other. When he and his wife Estelle test the technique on Mike Rosco, little does he know his wife will soon get addicted to the machine…
The American scientist pays a visit to the house of his fiancee’s family. There, he realizes many plants and local animals horribly mutated by strange radiation. Unfortunately, this radiation effect on the mother and she has changed into something eccentric.
Robert Manning begins a investigation into his missing brother. He comes to the house his brother was the last heard from. The owner of this house is welcoming him, but he doesn’t know many uncanny things are coming up.
Two bumbling American cops hunt for the mysterious Mr. Hyde in London, England.