Marriage is all about " honesty , love , loyal and respect" But there is no such thing in this mini tv series.
its a good short tv show. really good performance. and really understandable British English without subtitle.
Its weird in so called civilised countries that husband n wife talk about their private issues with other people who dont give a damn about it. and then a sex therapists recommend FIRST to Fantasise about having sex or feelings for another man or recommend a book "lady Chatterley lovers" which is about unfaithful woman. educated people with no brains are no good.