1865: Swiss captain Bluntschli fights as mercenary in the war between Bulgaria and Serbia. When his group's attacked by a few Bulgarian troopers, he learns that he's got the wrong ammunition for his cannon and has to flee. His flight leads him right into the bedroom of his enemy's fiancée.
A young girl's loyalty to the Communist Party is tested in Prague when she falls in love with an attache who has just arrived from the United States.
Wide-eyed and poor young Leonora weds an obsessive millionaire named Ohlrig, but the marriage is loveless. Even worse, Ohlrig seems to have manic, violent tendencies. Eventually, young Leonora escapes her unhappy life and begins working with New York City doctor Larry Quinada, who she soon falls for. Unfortunately, Ohlrig refuses to grant his wife a divorce, and things get even darker for Leonora when she realizes she's pregnant with his child.