Drama following the scandalous relationship between historian Harold Nicolson (David Haig), novelist Vita Sackville-West (Janet McTeer), and her lover, Violet Keppel (Cathryn Harrison), in post-WWI England. Sir Harold Nicolson and Vita Sackville-West appear to have the perfect marriage, but beneath the glossy veneer, Nicolson is a fervent homosexual, constantly away from home, pursuing new conquests. Vita, happy at first to go along with her husband's indiscretions, soon develops a relationship of her own with her childhood friend, Keppel, causing tensions to rise in her marriage, and forcing her to consider moving to Paris with her lover.