Irène is the unhappy wife of a wealthy publisher, Jacques Voisin-Larive, who cares about her no more than a beautiful piece of furniture. Her meeting with Étienne, a young cabinetmaker with whom she falls in love, turns her dismal existence upside down. Not wanting to reveal her condition to her lover, she pretends to be a modest maid, employed by the Voisin-Larive. At the end of a weekend spent with her lover, Irène discovers that she is pregnant. The fragile balance of their existence is suddenly broken. Taking the initiative, she reveals her affair to Jacques and tells him about her desire to divorce. But her husband has no intention of giving her back her freedom...

In the late 1800's, Franz Ferdinand, heir to the Austro-Hungarian empire, falls for Sophie Chotek, a Czech countess. He's already a problem to the Crown because of his political ideas; this love affair with someone not of royal blood breeches protocol. The Crown allows the union only after the couple agrees to a morganatic marriage. The emperor further neutralizes Franz by making him inspector general of the army, sending him afield for months at a time. In June of 1914, fearing for his safety, Sophie seeks permission to accompany Franz to Sarajevo; protocol dictates that no army troops attend Franz while she is present. An assassin strikes. Their deaths spark World War I.