Siegfried, son of King Siegmund of Xanten, travels to Worms, capital of the Burgundian kingdom, to ask King Gunther for the hand of his sister, the beautiful Kriemhild.

Dr. Mabuse and his organization of criminals are in the process of completing their latest scheme, a theft of information that will allow Mabuse to make huge profits on the stock exchange. Afterwards, Mabuse disguises himself and attends the Folies Bergères show, where Cara Carozza, the main attraction of the show, passes him information on Mabuse's next intended victim, the young millionaire Edgar Hull. Mabuse then uses psychic manipulation to lure Hull into a card game where he loses heavily. When Police Commissioner von Wenk begins an investigation of this mysterious crime spree, he has little to go on, and he needs to find someone who can help him.

Ayan, Maharajah of Eschnapur, believes that his wife, Princess Savitri, has been unfaithful to him with officer Mac Allan. He decides to bury her alive, so he sends the Yogi Ramigani to England to look for Herbert Rowland, an architect; but when he orders him to build a tomb, Rowland refuses.

1938 film directed by Hans Deppe