The Misadventures of Merlin Jones (1964) Tommy Kirk, Annette Funicello, Leon Ames, Stuart Erwin

After inventing a special mindreading helmet, college student Merlin Jones learns of a crime a local judge is secretly plotting to commit. When the police won t listen, Merlin teams up with his girlfriend, and the two manage to sneak into the judge s house looking for evidence of criminal behavior. When the judge turns out to be a crime novelist rather than an actual criminal, Jones realizes that his invention could use a little work.