Clothing designer Mary Haines lives in a beautiful country home with her wealthy financier husband and their 11-year-old daughter. Her best friend Sylvie Fowler is the editor at a prominent fashion magazine. The woman dictate the latest trends in taste and style for New York City fashionistas. When Mary's husband becomes involved with perfume salesgirl Crystal Allen at Saks Fifth Avenue, her friendship with Sylvie is put to the test. Everyone in their close-knit circle of friends, including the ever-pregnant Edie Cohen and author Alex Fisher, begins to question their loyalty to each other and their romantic involvements.