Oh, how absolutely chilling! I loved it. It built suspense very well through out- keeping the reader guessing, much like the narrator, what exactly is going on here? Very well thought out and written!
It reminded me of that one movie with Seth Green and another movie where the writer is writing in his sleep/unconscious mind, and is unaware of the story he is weaving- Only more gory, less funny.
Overall- kept me interested; especially liked the twist at the end!