Dr. Karl Sternau, the personal physician of the count Bismarck, who spent much of his youth in Mexico, is sent back to that country during the occupation by French troops in the service of the Austrian 'Emperor' Maximilian, to carry an encouraging letter from U.S. President Lincoln to the nationalist Mexican president Benito Juarez.
U.S. spies catch a Moscow-born U.S. citizen helping spies, and they force him to counterspy.
Based on a book by Vicki Baum, all of the action takes place in one day in a luxury hotel in Berlin. Grusinkaya is a ballerina staying at the hotel, other guests include Baron von Gaigern a sophisticated thief, Otto Klingelein a dying man, Preysing a businessman, and a stenographer. Events intertwine the lives of these strangers, bringing them together for some dramatic moments.
Azerbaijan, 1919. The British hope to secure control of the vast oil fields around Baku by launching a series of terrorist attacks on them. Hans Romberg, a German who is working as a security officer, battles with the British chief agent Captain Forbes and his associates. (Description from Wikipedia)
After a love affair ending in an abortion, a young prison reformer submerges herself in her work. She then falls for a controversial and married judge and scandal looms again.
A domineering matriarch is less than happy when her son brings home his new bride. She immediately sets to work at sabotaging their marriage as well as the engagement of her younger and weaker son.
A young French soldier in World War I is overcome with guilt when he kills a German soldier who, like himself, is a musically gifted conscript, each having attended the same musical conservatory in France. The fact that the incident occurred in war does not assuage his guilt. He travels to Germany to meet the man's family.