Great ep - one of the best in the history of drama on TV. Lol in the post above stating "classic Oedipus Rex" as a complaint when Oedipus Rex has never been dramatised on film before to this extent, let alone on mainstream TV. Obviously Dcat has watched a lot of "classic" Greek drama on the stage because you won't find Oedipus Rex elsewhere because its a shocking topic to deal with. Shocking episode with a dream like quality. If Dcat is complaining about a remake, well, basically all good drama has been remade continually on TV anyway.
Thumbs up from me - the high point of this series and one of the high points in TV this year.