Jerry Mulligan is an exuberant American expatriate in Paris trying to make a reputation as a painter. His friend Adam is a struggling concert pianist who's a long time associate of a famous French singer, Henri Baurel. A lonely society woman, Milo Roberts, takes Jerry under her wing and supports him, but is interested in more than his art.

A mysterious American gets mixed up with gunrunners in Syria.

An American serviceman remains in France after WWII and becomes a black marketeer.

A gambler discovers an old flame while in Argentina, but she's married to his new boss.

Prof. Joseph Elsner guides his protégé Frydryk Chopin through his formative years to early adulthood in Poland. The professor takes him to Paris, where he eventually comes under the wing and influence of novelist George Sand and rises to prominence in the music world, to the exclusion of his old friends and patriotic feelings towards Poland.

A mystery writer is intrigued by the tale of notorious criminal Dimitrios Makropolous, whose dead body was found washed up on the shore in Istanbul. He decides to follow the career of Dimitrios around Europe, in order to learn more about the man. Along the way he is joined by the mysterious Mr. Peters, who has his own motivation.

In occupied France, a convicted thief and murderer escapes the guillotine when a bombing raid strikes the prison, but is quickly re-captured by the inspector of the Surete responsible for his original arrest. Fearing the guillotine more than his actual death, the convict inveigles the inspector to help him with a plan to rescue 100 Frenchmen taken by the Gestapo following an act of sabotage: he will confess to being the saboteur and allow himself to be executed by firing squad, the Gestapo's method of execution, thus freeing the 100 men.