Wealthy businessman and financier Otto Forbes has cut off his son Jimmy's allowance. Jimmy's valet Parsons comes up with a scheme to restore Jimmy to his father's good graces. The elder Forbes loves music, so Parsons suggests Jimmy "compose" a beautiful piece. Since Jimmy has no musical talent or training, Parsons tries to pass off works, such as a Beethoven sonata, as Jimmy's, but Forbes is not fooled, leaving Jimmy in deep financial trouble.
Forbes and bitter business rival Sir Charles Rimmer are running against each for Parliament. Jimmy meets and becomes enamoured with Rimmer's daughter, Jane.