Warsaw 1831: The young music student Frédéric Chopin falls in love with the singer Constantia. When his professor learns that Polish revolutionaries want to persuade Chopin to take part in their uprising, he and Constantia hatch a plan to keep Chopin away from the revolution: Constantia pretends that she no longer loves him, so that Chopin accepts an offer to go to a concert in Paris. There, however, he meets the famous writer George Sand and falls in love with her.

An RAF squadron is brought down over occupied France. The flyers get to Paris in spite of the fact that the youngest, Baby, is injured. He must be hidden and his wounds cared for. The Gestapo has already issued orders for their arrest.

Johnny Riggs, a con man on the lam, finds himself in a Latin-American country named Patria. There, he overhears a convent-bred rich girl praying to her guardian angel for help in managing her tangled business affairs. Riggs decides to materialize as the girl's "angel", gains her unquestioning confidence, and helps himself to the deluded girl's millions. Just as he and his partner are about to flee Patria with their booty, Riggs realizes he has fallen in love with the girl and returns the money, together with a note that is part confession and part love letter. But the larcenous duo's escape from Patria turns out to be more difficult than they could ever have imagined.