Part 1, The Girlfriend of the Yellow Man Young Danish adventuress Maud Gregaards (
Mia May) answers an advertisement to take up a position as a governess in
China. There, she falls victim to the
white slave-trade and is placed in a brothel. She is freed by her travel companion, Dr. Kien-Lung (
Henry Sze), but the physician is then kidnapped by the devilish Hai-Fung, who also captures and tortures Maud. Chinese consul Madsen (
Michael Bohnen) releases both Dr. Kein-Lung and Maud from the clutches of Hai-Fung. It is later revealed that Maud is harbouring a secret plot of revenge that brought her to China. Maud decides to tell her two trusted companions what that secret is.
Part 2, The Race for Life The second part of this film is a prequel to the first part. Maud explains to her companions why she travelled to China. Maud's father was an archivist at the Foreign Office in
Denmark. There he was blackmailed to hand over a Chinese secret agreement. Unable either to face the blackmailers or to betray his country, he commits suicide. Maud later falls in love with Baron Murphy (
Hans Mierendorff) for whom she works as a translator, and they become engaged. Unknowingly, Maud translates the Chinese document for the Baron, after which he takes the secret and flees the country, leaving Maud to be arrested as a spy. In jail, Maud gives birth to the Baron's child but the baby dies in prison. On being released from jail, Maud comes into the possession of information about the rabbi of Kuan-Fu, who is said to have knowledge of the hidden treasure of the
Queen of Sheba. She decides to travel to China to find the treasure which she hopes will allow her to take revenge on her former lover.
Part 3, The City of Gold Maud Gregaards, Kien-Lung and Consul Madsen travel together to find the rabbi of Kuan-Fu, the last surviving member of an ancient Jewish settlement in
Canton, who is said to be in possession of the secret to the fabled treasure of the Queen of Sheba. The three companions enter the ancient ruins where the rabbi is believed to live, watched suspiciously by the local natives. On finding the old rabbi, Madsen reveals that he is Jewish and gains the trust of the holy man. They are entrusted with the Gem of
Astarte, which was once given to King
Solomon by the Queen of Sheba, and within it the map to the treasure. Before he can reveal any further information the rabbi dies. On leaving the ruins Madsen is injured fighting with the natives, and is abandoned by Kien-Lung; the Gem of Astarte is briefly lost in the same encounter. As Madsen meets back up with Kien-Lung, a fight breaks out between the two men, only Maud's intervention separates the two.
Part 4, King Macombe Maud, along with, Madsen and Kien-Lung, adventure into
Central Africa, to search for the biblical city of
Ophir where the treasure lies. There they enter the realm of King Makombe, at the heart of the Cult of Astarte. The tribe's Medicine Man (
Louis Brody) steals the Gem of Astarte to appease the natives against the invaders. Maud, Madsen and Dr. Kien-Lung flee but during the escape Kien-Lung is struck by a
poisoned arrow and dies. Maud and Madsen find shelter in a cave, where they are hidden from their pursuers. In the final scene, Maud and Madsen reach the gates of Ophir.
Part 5, Ophir, City of the Past Maud and Madsen eventually find the City of
Ophir, but are discovered in the treasury of the Queen of Sheba and are captured as intruders. Maud is to be sacrificed because she had desecrated the sacred ground of the city. Madsen is sent to the slave city of Sabyten, where he is to suffer life as a slave. As Maud is laid on the sacrificial altar, the high priest sees she wears the necklace of Astarte, and Maud is declared as the reincarnation of the goddess, whose return had been predicted. Madsen escapes from captivity with the help of an American engineer, Allan Stanley (
Paul Hansen), whom he met in the slave city, and returns to rescue Maud. The three find the treasure and manage to telegraph the outside world for help. An American expedition hears their plea and sends a plane to rescue all three, but Madsen is killed in the escape. As they fly from the city an earthquake leaves the mysterious City of Ophir in ruins.
Part 6, The Woman with the Billions Maud Gregaards, now incredibly rich, seeks out a new life, and under the name Maud Fergusson, settles in the
United States. The American newspaper publisher, Fletcher, who sent the rescuing aircraft to Ophir, turns her story into headline news, making Maud a celebrity. This story is attacked by a rival newspaper, ''Harrison's Universe'', run by Hannibal Harrison (
Wilhelm Diegelmann), declaring the whole adventure a fantasy. Both tabloids are reduced to a war over Maud, while a theater agent, Karpeles (
Paul Morgan), makes a film about Maud's adventure. Although little more than fabrication, the movie makes her a superstar. Meanwhile, Maud and Allan fall in love and leave for
Europe.
Part 7: The Benefactress of Mankind The billionaire Maud Fergusson, attempts to start a new life with Allan Stanley. The wealth gained from the Queen of Sheba's treasure allows the "Mistress of the World" to live a carefree life in
Denmark and the two plan to marry. Stanley insists that before they marry that Maud tells him the name of the man who is responsible for all her misfortunes. Maud, however, has put her past behind her and just wants to find peace. She plans to become a benefactor of mankind, sponsoring research and technology projects with their billions. Allan, meanwhile, develops a remote fusion machine that can melt metal. Since guns can be destroyed with this powerful invention, he soon falls into the sights of ruthless weapon manufacturers that want to stop its production. On the day of the invention's first public demonstration, there is a huge explosion, caused by Maud's nemesis Baron Murphy. Allan is killed in the explosion.
Part 8: The Revenge of Maud Fergusson The death of Allan, shortly before their wedding, sends Maud on a quest for bloody revenge. Helped by a detective, Hunt, (
Rudolf Lettinger), Maud discovers that Baron Murphy is behind her fiancé's death and sparks a newspaper campaign against the Baron to expose him. Murphy loses his entire fortune and is forced to leave the country and dies while desperately battling through a snowstorm. Hunt also discovers that a young academic Credo Merville (
Ernst Hofmann) is Murphy and Maud's son, who is supposed to have died shortly after his birth. In the end, mother and son fall into each other's arms. ==Development==