'Cashmere Mafia' features the lives and loves of four of the most wealthy and powerful women in New York City. After accepting his marriage proposal, magazine editor Mia Mason ends up in competition with her fiancée, Jack Cutting, for a promotion to publisher. Wall Street banking executive Zoe Burden juggles her two kids, her architect husband Eric, and her job when their new nanny is poached. Cosmetics mogul Caitlin Dowd finds herself attracted to someone new: a female public relations executive named Alicia. Hotel chain CEO Juliet Draper deals with both her rebellious teenage daughter, Emily, and her businessman husband, Davis, who breaks the unspoken rules of their marriage involving monogamy by cheating on her with her old rival Cilla Gray.