Based on a play by Arthur Schnitzer, this is a rather flat remake of the 1932 film Liebelei that featured Magda Schneider as Christine. Director Pierre Gaspard-Huit keeps it all in the family by putting Schneider's daughter Romy Schneider in the top female slot. Opposite her is newcomer Alain Delon in his first lead role, yet to reach his stride on the silver screens in France. The setting is 19th-century Vienna and Franz (Delon) is a young lieutenant who has fallen in love with Christine, a charming opera singer. But Franz' feelings are misunderstood -- a wealthy baron is certain that the lieutenant is after his wife and as a result, challenges him to a tragic duel.