Jeffery Fairbrother learns his estranged wife, who wants a divorce, has been having an affair with a judge, the Honourable Max Tewkesbury. When he arrives, he asks him to accept her request, but Fairbrother is not eager to do so. While Gladys is disturbed, due to her love for him, neither realise Max's arrival is not what it seems to be.
Note: The fourth series was originally aired right after the conclusion of the third series; however, it is listed as its own series, rather than an extension of the previous series.
Original Broadcast Date 12th December 1982