The Monster in the Mirror — Gareth Lewis

Murder was an aberration, and unsolved crimes considered impossible in a society where everyone is watched inside their own head. Then a murder occurred that required a detective.

Now there's another unidentified killer, targeting representatives of society's failings.

Having avoided the sheriff, and Theresa, for fear of being boxed away again once no longer needed, the mystery proves too much for Alex to resist.

A 36,000 word novella.