Anna and Claire are two bantering, scheming "women of fashion" who have long lived together on the fringes of upper-class society. Anna has just become the mistress of a wealthy man, from whom she has received an enormous emerald and an income to match. Claire, meanwhile, is infatuated with a respectable young lady and wants to enlist the jealous Anna's help for an assignation. As the two women exchange barbs and take turns taunting Anna's hapless Scottish parlor maid, Claire's young inamorata suddenly appears, setting off a crisis that puts both the valuable emerald and the women's futures at risk.