The worst for me was in the white room near the end, with the devil with yellow eyes. I had legit shivers up and down my spine.

It was a great scene! I also loved to see how well prepared they were. I was surprised to see how much material and planning were involved.

The show succeeds very well in creating an stressful atmosphere, partly due to the vulnerability of David when confronted to what seems to be the "evil beings" living inside his head. We never know if the decisions he'll take will serve the "good" or the "bad" inside himself.

According to the closed captions, the dog's name is "King"