T.K. Tonfilm-Produktion GmbH

A cabaret dancer loves a German engineer and helps save his vital drawings of ship designs from falling into the hands of foreign plotters.

A group of popular musicians including a girl singer is staying in a spooky castle where there may be a treasure of money.

The star of an operetta is engaged to its elderly director but really loves a dashing young Bavarian she met at a masked ball.