Fans of Downton Abbey have been drawn to Weldon's trilogy hoping for more of their beloved above-and-below stairs soapiness, and many were disappointed to find the Dilberne clan to be such a lot of snooty, venal, narrow-minded, horny rotters -- and their downstairs staff no better. But Weldon, who wrote the pilot episodes of Upstairs Downstairs, brings her trademark snarkiness about gender and class relations to the over-romanticized world of Edwardian manor drama. This third installment is a wickedly funny conclusion to the saga, and offers an efficient portrait of just what kinds of attitudes brought about the cataclysmic -- and welcome -- end of the British class system that the makers of Downton Abbey seem to wish was still in effect.