Woody Harrington and His Whispering Wizards
Pianist Harrington learned piano at the settlement house of the slums he grew up in. He's out on parole, and Kohler is blackmailing him into helping him.
Turns out European roller-skating ace Kohler is sending coded messages through the songs he has Harrington play and Farrell sing, and flying his helicopter out to a waiting commie submarine to deliver microfilm of U.S. secrets! Maureen, her brother, and an undercover FBI agent bust up the whole gang. Harrington gets into a big time New York music school to learn "...real long-hair stuff!"