Amalgamated Productions

A researcher investigating a notorious serial killer who was hanged 20 years earlier seemingly becomes possessed by the long dead strangler.

In 1840s London, Dr. Thomas Bolton [Boris Karloff] dares to dream the unthinkable: experimenting with anesthesia gases to make surgery pain-free. While doing so, his demonstration before a panel of his peers ends in a horrific mishap with his patient awakening under the knife; he is forced to leave his position in disgrace. To complicate matters, he becomes addicted to his own chemical experiments and gets involved with a criminal gang led by Black Ben [Francis de Wolff], and a ruthless killer Resurrection Joe [Christopher Lee]. Unfortunately, this shady partnership leads Dr. Bolton to further ruin, culminating in his unwitting participation in murder — for which he becomes the first victim of a blackmail scheme.

The first pilot to leave Earth's atmosphere lands, then vanishes; but something with a craving for blood prowls the countryside...

An American airbase in Canada provokes resentment from the nearby residents after fallout from nuclear experiments at the base are blamed for a recent spate of disappearances. A captain from the airbase is assigned to investigate, and begins to suspect that an elderly British scientist who lives near the base and conducts research in the field of mind over matter knows more than he is letting on..

A physicist finds himself drawn into an investigation to track down a spy at his research station.

In this suspense movie, a Yankee mercenary is hired to blow up an Arab dignitary.