Very effectively written with good pacing and a very deliberate reveal of the key details. I enjoyed the way that you focused on portraying small moments in the studio. There were a couple of details that stood out in awkward ways. One was related to a repeated phrase:
You decide to…
The knocking returns.
Now you…
This seems like it might be an issue with the underlying logic. There was also another moment where we make a critical choice which I don't think needs to be pointed out: "You may respond (choices lead to different endings)". It feels unnecessary to point this out. Otherwise, I though this turned out really well!