In Alsace, which was under German occupation, shortly before the outbreak of the First World War. Marie Ducrot (Vilma Bánky) is a pretty young peasant woman who falls in love with Count Karl von Hagen (Walter Byro ), a German army officer. Marie is seen when she visits von Hagen in his quarters. The people suffering under the occupation see Marie as a traitor and assault her physically. Marie disappears and is believed dead. But she has fled to a monastery where she is accepted as a novice. The war breaks out. Von Hagen is wounded in fighting near the monastery. Marie nurses him back to health. Von Hagen wants her to go to Germany with him. The French lieutenant Le Bête (Louis Wolheim) helps the two to reach the German lines. The couple get to safety, but Le Bête is killed by a sniper's bullet.