If you're reading this thread before watching the repeat - tough.
This is where Russel T Davies really shows where his talent lies - story telling. When the doc is walking away, you KNOW you've got another 30 mins to go, so that can't be it, but the pathos is phenomenal. You get all the emotion of that kind of ending, hoping he'll do something. But when he does, it all goes horribly wrong. And he ends up taking more guilt, because he's responsible for her death.
Better than the last two episodes. Way better. ( I've one child declaring she'll never shower again, and another who wants the light on tonight ).
Christmas looks promising.