Holy hell this was FANTASTIC. I expected a depress-a-thon and got something equally terrifying and relatable. Often times horror doesn't get me, but [spoilers] that line about "us" actually made me shout "holy shit" - something The Shining failed to do. Great job!
Slightly off-topic: I found that A Silver Mt. Zion's "Broken Chords Can Sing A Little" made for some fantastic musical accompaniment with this.