A romantic drama set in Germany just before WWI and centered on a married woman who falls in love with her husband's teacher. Separated by the war, the pledge their devotion to one another.

Germany, 1912. A youth of humble origins takes up a clerical post in a steel factory. Impressed by his work, the elderly owner takes him on as his private secretary and sets him up in his home. While there, the young man meets the owner’s beautiful and reserved wife — and falls helplessly in love with her, unbeknownst to the couple. But just as his employer announces that he is sending him to oversee his mines in Mexico, the wife makes him a startling promise.