College student Sarah Richards is alone in fearing and disliking the new teaching machines but even she does not foresee the terrifying situation that arises when her supervisor, Stephen Kershaw, re-arranges the machines to conform with revised fire regulations.
Stephen Kershaw
Sarah Richards
Freda
Geoffrey Harrison
Eric Lonsbury
Dr. Hammond
Davison
Mrs. Richards
George
Florrie
Chief Supt. Mailer
General Harboard
Harold
