Francois Korb is an arms manufacturer who sold both to the Germans and the Allied forces. Korb's home life is less than ideal, since his wife is having an affair with his brother, and his young son is inseparable from a teddy bear. To remedy the son's situation, the parents take in a little refugee girl as a temporary companion and playmate, and the two children become fast friends.
Dr. Wittich is a passionate speleologist who spends more time on his research than on his fiancée Cornelia. As a result, she turns to the rich industrialist Roy, whom she eventually marries. But her heart actually belongs to the explorer and so she is drawn back to him.