Some good decisions, mostly to reinvest thoughtfully in references to season one (even as the tone has markedly changed for season two) pay off this week.
Ultimately, the film settles for being one of those British apocalypse tales about the inevitable demise of the Empire, down to a drowned world scene near the end of the film.
These aren't your baseball playing Twilight vamps, these are eldritch beings stuck in their own worst patterns for centuries, torturing each other to epic degrees.