Vienna, 1906. A passionate love story develops between Franz Lobheiner and the young Christine. Lobheiner is, however, currently seeing the married Baroness von Eggersdorf. Upon learning of his wife's infidelity, the Baron von Eggersdorf provokes a duel with Lobheiner. But the former is no longer a real threat to the Baron. Lobheiner is now passionately in love with Christine. How will this love quartet end?
Romy Schneider
as Christine Weiring
Alain Delon
as Franz Lobheiner
Jean-Claude Brialy
as Theo Kaiser
François Chaumette
as Wimmer
Jacques Duby
as Joseph Binder
Sophie Grimaldi
as Mizzi Schlager
Jean Davy
as Colonel of the Dragons
Bernard Dhéran
as Captain Lansky
Jean Galland
as Baron Eggersdorf
Jean Lagache
as Linz
Colette Proust
as Émilie
Jacques Toja
as Schaffer
