The finale, "A Controlled Descent," wasn't much of a mystery, and the things that passed for mysteries -- what happened to Olivia, and where was Alfredo -- weren't the heart of the episode.
It became obvious that there was more to Oscar's need for Sherlock to find his sister than he was letting on. As the episode wore on, it was clear that the episode was really about Sherlock's journey into his own heart of darkness.
In that sense, this wasn't a Sherlock Holmes story in any traditional sense. This wasn't about deduction and observation. There was no parsley in the butter, no dog that didn't bark in the night.
Instead, this was a story about a man, Sherlock Holmes, deliberately pushed to his breaking point. What would he do when he reached that point? And would he break?
Look at what Sherlock Holmes has lost in the last year -- his brother, his daughter (emotionally true if not biologically), and, for a time, Watson. Cut off from his emotional support networks by Oscar's plan and without any way of reaching them, Holmes was on very, very dangerous ground as he descended deeper into the past that he had left behind but was never very far away.
I don't think this was as good as "The One Who Got Away" (Kitty's departure), but for
Elementary this was still very good indeed.
The only thing that would have made it better, frankly, was Kitty herself. And I can "see" what she would have done -- while Holmes went with Oscar to find Olivia and Joan went after Alfredo with Bell, Kitty followed the clues to find Holmes. And then, at the train tunnel at the
end, she finds Holmes, the heroin kit in his hand.
The song at the end, by the way, was Keaton Henson's "Beekeeper." Which, when you listen to the lyrics, could so easily apply to this Sherlock Holmes. "You all say I've crossed a line, but the sad fact is I've lost my mind."
[yt]ttps://www.youtube.com/watch?v=QRrer1toZX4[/yt]
Well SPOILERS for the season finale last night................... but looks like Sherlock finally relapsed at the end after being put through the emotional wringer and manipulated by his old drug dealer.
Rob Doherty said
in an interview that Sherlock did relapse, and the fourth season will deal with the fallout, since we know that Holmes' father will cut him off.
To be frank, when he picked up the heroin kit, I wanted him to inject Oscar with it, induce an OD, and kill him. I honestly would have been more content with Holmes murdering Oscar than giving in to the compulsion of heroin addiction.