When the Grand Duke of Abacco (Harry Liedtke) faces ruin over bankruptcy, it appears only his marriage to a Russian princess (Mady Christians) can preserve the integrity of the duchy. But, many nefarious characters are at work to see that the duke goes down in flames. "Nosferatu" director F.W. Murnau's unique excursion into espionage comedy co-stars Alfred Abel, Max Schreck. 77 min. Standard; Soundtrack: music score; audio commentary. Silent with music score.