Good pacing, showing not telling, slowly working up to a strong horror theme. I love when a horror story keeps dropping hints and then explains how it’s so much worse than you thought and this absolutely did that.
What I didn't like
Since it is a script read in person, perhaps there can be more fun in fleshing out the characters with their portrayal. Some people did accents which ruled, and others had props. You can add in vocal tics or ways that they speak to add personality to the characters.
My overall impression
Very fun storytelling technique. They do a great job of showing and not telling what is going on and have good pacing, slowly ramping up the horror until it is apparent what is going on.