Though it is inexplicable what this woman character finds in this loser of a husband, if you are willing to suspend your disbelief on that matter then this plot works okay. A successful, educated woman with a nice house, a son, and a husband she thinks is okay is surprised to find not only is he cheating on her with someone inappropriately young but that many of her "friends" have been hiding this from her. She tries to keep it together, doing whatever she can to figure out what is happening and to save her marriage, but she finally realizes he is the idiot that the viewer has understood he was from early on and lets go.
Perhaps it is a British thing that she never thinks I'm going to kill the SOB, but I rather hoped she would. Adult viewers get that the 20-year-old he goes away with will be cheated on in her turn, if she doesn't quickly find poverty unpleasant, and he'll hit her on the way out, and so it will go. And it would be a happy ending with Dr. F, dumping the loser but for her staying in the small town that also betrayed her, which makes no sense either. For a smart woman, that's pretty dumb behavior.
Anyway...acting, lighting, all that perfectly good. Bertie Carvel nailed the sniveling boy-man who justifies and excuses his cheating. A character you do love to despise.
Perhaps it is a British thing that she never thinks I'm going to kill the SOB, but I rather hoped she would. Adult viewers get that the 20-year-old he goes away with will be cheated on in her turn, if she doesn't quickly find poverty unpleasant, and he'll hit her on the way out, and so it will go. And it would be a happy ending with Dr. F, dumping the loser but for her staying in the small town that also betrayed her, which makes no sense either. For a smart woman, that's pretty dumb behavior.
Anyway...acting, lighting, all that perfectly good. Bertie Carvel nailed the sniveling boy-man who justifies and excuses his cheating. A character you do love to despise.