I love Midsomer Murders, which I think is a perfect combination of all the elements needed for a detective show. It was just fine the first 6 seasons, with the only low points being "The Electric Vendetta" and "Who Killed Cock Robin?" (in fact, "Blue Herring" wasn't the best episode of the show either, but had too much good stuff and humor to call it a flop), and continues to be great here in season 7, which kicks off with "The Green Man", a good if not exactly great start. "The Green Man" is a sad breakup with Sgt. Troy and just a good episode in itself.
In fact, my complaint about "The Green Man" is that it falls away from the usual concept and style of Midsomer Murders, being one of the most dark and bitter episodes of the show and does not carry the usual cheerfulness, humor and comfort that fills most good episodes of Midsomer Murders. Secondly, it is somewhat sagging in the middle and it lacks more dynamism and atmosphere. But now about the pros:
I really liked the line with the old murder and its ending, which is one of the saddest in Midsomer Murders. The murder victims are all disgusting, and I'm very glad they were killed. The ending of the main storyline is hard, rough, unpleasant and shocking, but at the same time logical and successful, although the killer is a rather pathetic character.
But the main advantage of the episode is undoubtedly David Bradley in the role of Tom, who actually steals the show and does an incredible, powerful and charismatic job, all the scenes with him are heartfelt and his character can not but inspire respect and compassion.
As a result, a solid, though out of the ordinary episode of a great show. 9/10.