'Tis the season, and those jolly holiday elves at New Edgecliff Theatre have arranged for us to revisit Mrs. Jocelyn Dunbar of haute suburbia. She comes complete with a $1.98 blonde wig and a razor tongue, telling her merry tales of an overachieving older son, an underachieving younger son, a flame-tattooed, drug-devoted daughter, a crack-damaged infant grandson and, of course, her philandering husband and his holiday surprise to the Dunbar household: a screeching, mini-skirted, 22-year-old souvenir of his wartime romping in Vietnam.