32-year-old Alice enjoys an enviable middle-class marriage. Her husband, Richard, is a bank executive with ample financial resources, but their marriage is cold and strained. Due to Richard's physical problems, their relationship exists in name only, leaving Alice feeling trapped in a gilded cage. Richard's younger brother, Noah, comes to visit for the summer, and their past relationship resurfaces. Before their marriage, they were lovers. Years ago, when Alice's father was seriously ill, Richard forced Alice into marriage on the condition that he would cover the medical expenses, forcing them to separate.