The third episode to Yakusamashi-hen was quite human in detail and immersive.
Human, because I was able to cope with Rika's fear and insecurity knowing that resistance is not possible. She feels the anguish of death coming step by step, and filling every cell of her body with a depth sense of fear for the unknown killer.
Immersive, because it is interesting that as Satoko played the witness to Rika's sense of fear and sorrow at last she plays the main role for this arc halfway into the episode.