There are several questionable plot issues with the ending. The idea that the main characters aren't able to recognize their university classmates from 20 years before is ludicrous. There is no reason for the prosecutor of the rape charge, a really weak character, to have turned out to be the same woman raped by the defendant 20 years before at the end of a wild party. And now, after a name change, she is prosecuting him for a similar type of rape. On this I agree with the criticisms.
But the reviewers are really off-base in criticizing the MP's wife for leaving her husband after he is found not guilty. They miss the whole point of this fascinating story. The series starts with showing the wife at a cocktail party where she is enthusiastically greeted by all and is obviously a very popular figure in govenrment social circles. She is beautiful, charming, and seemingly has the world at her fingertips. She then finds out her husband has been having an affair with a young staffer but has recently broken it off. She and her husband work through this OK, but then the staffer accuses him of raping her in an elevator (lift) two weeks after he had ended the affair. He and his wife endure a trial, which is strictly a "he-said, she-said" case as there is no physical evidence, and no corroborating evidence other than the young woman's friend who testified that the woman had mentined the incident to he the day after it happened.
Naturally the MP is found "not guilty" by the jury, but in the process certain events of 20 years earlier come to light, and the wife realizes that her husband has been hiding the truth about this past event from her, and in essence hiding the truth about himself and what kind of person he is. The sense of entitlement of the upper class in Britain becomes more obvious and more odious to the wife, and she leaves him, taking their two kids with her to an idyllic place away from London and to a new life. This makes perfect sense in light of her new insights. It makes perfect sense that she does not want her children growing up in this type of toxic environment of entitlement.
Asa retired lawyer, I am dismayed at certain legal aspects of the case. No competent prosecutor would ever bring rape charges on this flimsy evidence. The trial itself is shown in in a believable manner, but the idea that there would even be any charges brought in the first place is totally bogus. The alleged victim didn't even say "no"; what she said was "not here", a statement the defendant emphatically denies hearing when he testifies, but which is ambiguous in any event.
The other legal problem with the plot is the idea that the MP and his friend, the Prime Minister, would be arrested for crimes committed 20 years before. Their resignations from Parliament are quite realistic, and mirrors actual scandals in Britain's past. But to also be accused of a crime on top of being disgraced seems out of bounds. In the U.S. the crmiinal statute of limitations would have ruled out such a charge 20 years after the fact. Apparently there is no statute of limiations in Britain for serious crimes, a real oddity to me.
