Anne and Mervyn, a seemingly well-settled middle-aged couple, are awaiting the arrival of Helen and David, a younger couple who were formerly their neighbors and close friends. Their reunion begins on a light and humorous note, but as the after-dinner talk grows more serious we become aware that the two couples had once engaged in an adulterous arrangement--and both have found it difficult to deal with the self-recriminations which this has created. Mervyn has begun to drink more than he should; Anne is coldly cynical; and Helen and David have turned to group therapy. But their problems still remain and, as the conversation becomes more revealing--and provocative--the underlying values of human existence are drawn into question.2 women, 2 men.