Fairly strong episode so far. Great soundtrack and visuals, clever problem solving, and an interesting idea for the big bad.

Even though I knew the twist, it was well done. Though pretty unnecessary? Also I'm glad they didn't tie it into the pantheon arc.

The Doctor cries again... But it does actually makes sense story wise this time!

The last scene I'm mixed on, I hope the midnight alien didn't survive. If it did it's going to be overused. But if it's just meant to be a paranoid scene like the end of Blink, I'm cool with it.