Sinopsis
This German melodrama starring blonde bombshell Lee Parry is notable only for containing an early appearance of future horror icon Bela Lugosi. Lugosi plays a French count who falls for a Russian cabaret singer turned spy for the revolutionary forces (Miss Parry). Happily, Bela's recently jilted girlfriend (Violette Napierska) just happens to be an undercover agent for the opposing forces. The film, whose German title, Der Tanz Auf Dem Vulkan, translates into something like "Dancing on a Vulcano ", was originally released in two episodes: "Sybil Young" and "Der Tod des Grossfursten" ("The Death of the Grand Duke").
allmovie.com
The U.S. version of the film was known as Daughter of the Night. It was considered a lost film until an archive print was discovered in its American release version in the 1990s