As they are leaving the church following their wedding, Count Adrian Beltrami and Countess Anna-Marie are told that the Austrians are marching on the town to quell an Italian uprising. The bride and relatives induce the count to flee to his castle, but Tangy, a silhouette cutter, brings word from the revolutionary committee asking him to return; the count goes, asking Tangy to pose as the count and protect Anna-Marie.
August Bolte, the richest man in a settlement in German East Africa in the period before World War I, is called "Mamba" by the locals, which is the name of a deadly snake. Despised by the locals and the European settlers alike for his greed and arrogance, Bolte forces the beautiful daughter of a destitute nobleman to marry him in exchange for saving her father from ruin. Upon her arrival in Africa, she falls in love with an officer in the local German garrison. When World War I breaks out, Bolte, unable to avoid being conscripted, foments a rebellion among the local natives.
When a rash of murders depletes their number, a billionaire's employees are brought together at an Englishman's estate.
In Czarist Russia, attractive Anna Ivanovna has consecrated her life to work among Russia's persecuted poor. She dispenses food, medicine, and funds to the needy, from a busy charity headquarters. Two men, separate in station, are in love with Ivanovna: Poor doctor Paul helps as much as he can, and wealthy merchant Serge donates money. The relentless and lascivious Chief of Police, also attracted by Ivanova's beauty and virtue, determines to possess her, and sentences all three to fifteen years in Siberia and East Russia on false charges.