The painter Hans Hauser falls head over heels in love with the "Black Forest girl" Bärbele Riederle. He travels to her home village and soon the two realize that they are made for each other.
In England, an eccentric police inspector, an earnest test pilot and a spunky female reporter team up to solve the mystery of a series of test aircraft which have disappeared without a trace while over the ocean on their maiden flights; unaware, as they are, that a spy ring has been shooting the planes down with a ray machine hidden aboard a salvage vessel which is on hand to haul the downed aircraft aboard, crews and all.
A chemist is left unhinged following a laboratory explosion and begins to plot a murder.
After a mix-up with a newspaper advertisement, a shop-girl and a millionairess are mistaken for one another by two businessmen. A musical romantic comedy.