Léontine, an old baroness, opposes her granddaughter's wedding for moral reasons. But Adolphe, her first husband reminds her that her own conduct in the past was far from irreproachable. Didn't she cheat on him ? And after her divorce from him and her remarriage with a baron, didn't she do the same thing to her second husband? Léontine then realizes she is in no position to lecture her granddaughter, all the more as she loves her fiancé truly.
A rich girl is in love with her father-in-law 's librarian. The wealthy man wants her to marry a military man but she's not prepared to accept it. She rebels and marries the poor guy. This young man has a cousin, who seems secretly in love with him but in fact we 'll never know what she feels. This mysterious sad woman, always dressed in black, gives her relative a strange box which seems to be a bad luck charm. The hand of fate seems on the newlyweds now:the husband involuntarily causes a car crash: his wife is killed.
The young King Boris of Neustria, who has followed his family in their exile in London, falls in love with the daughter of a wealthy American businessman. The latter, however, will only approve the union if Boris gives up royalty for the business world.