As in, unapologetically good TV, not just good for Lie to Me, which I've said some other times, is just a procedural when it comes down to it (and one based on shoddy science, at that).
No, that was good drama. That was serious tension between the characters, and it was conveyed (finally!) with the kind of subtlety that a show ostensibly about minute facial tics seems to require.
I mean, this show makes a point of giving you a slow motion close-up whenever somebody winces as if to say "See? He has feelings! They run deep!", but they never try to paint things with any amount of nuance, mostly because the pop anthropology they depict doesn't really support it, but also because they are aiming at the mostly braindead CSI-slash-The Mentalist crowd here.
So, while I've also said that I love the cast and the flashes of brilliance remain after the scripts have been beaten into submission down to middle-high class housewife level, I hadn't seen anything quite like this episode before. Things, for once, are left unsaid. The characters, impressively, don't slow to a crawl to let the audience always feel more clever than them. The plot is an enabler, not a McGuffin, for character development. The morality they depict has actual shades of grey, and it doesn't bother to spell out who was right in the end. It really, really did hit all the notes of pretty decent drama.
And, as always, it's fun to watch Roth and the rest of the cast work with the material. Although, to be fair, Tim Roth has a couple of scenes in which his hands overact in ways that would make Robert DeNiro blush. But still, good stuff. Not dumb. That is probably the best you can say about it. It was not dumb at all.
So can I cautiously request some more of that in the future? That would be nice.