A cabaret dancer loves a German engineer and helps save his vital drawings of ship designs from falling into the hands of foreign plotters.
| Actor | Role |
|---|---|
 Mady ChristiansDora Green | Dora Green |
 Paul HartmannFrank Gebhard | Frank Gebhard |
 Leonard SteckelSucharow | Sucharow |
 Betty BirdEllen Brinkmann | Ellen Brinkmann |
 Fritz OdemarDimitri | Dimitri |
 Kurt VespermannThomas | Thomas |
| AAnita MeyLola | Lola |
| EErwin van RoyDer Conferencier | Der Conferencier |
 Alfred AbelIwan Keller | Iwan Keller |
 Fritz AlbertiKapitän Brinkman | Kapitän Brinkman |
 John MylongPilarsky | Pilarsky |
 Gustav PüttjerAdler | Adler |
 Willi SchurGregor | Gregor |
 Walter SteinbeckDer Kommissar | Der Kommissar |