The son of a notorious hangman is gradually becoming insane and he finds himself unable to resist the urge to strangle women to death.

When an attractive young girl is murdered, suspicion falls on several members of the local tennis club. It falls to Police Inspector Halloran to sort out all the red herrings, and finally after a confrontation at the top of the local church spire, arrest the culprit. Another fascinating look at what life was like in Britain during the 50's.

Matter-transmitter sabotage leaves a British scientist (Bryant Halliday) disfigured and full of amps.