Gormless George Trotter (George Formby) moves down from Manchester to the bright lights of London in search of fame and fortune on the stage - only to find himself the prime suspect in a bizarre murder mystery! Whilst staying at Ma Tubbs' theatrical boarding house, a man is murdered in the room...
As WWII begins, vaudeville entertainer Tommy Towers is called up to serve. He arranges a job for his girlfriend at the local pub. To keep moral up, his commanding officer orders him to perform for the troops.
Struggling young actress Jenny (Marjorie Browne) joins her dad (Mark Daly) when he moves into Aunt Hetty's (Elsie Wagstaff) boarding house. Aunt Hetty overworks them, but Jenny is lucky enough to find love in the form of aspiring songwriter Tom (Hal Thompson). But their romance is threatened and...