Snapshot

 Snapshot by Brandon Sanderson, 100 pages.

Davis and Chaz are officers who specialize in Snapshots, investigations that take place in perfect physical recreations that replicate a certain day. Within the Snapshot they're the only people who are real, giving them power to do essentially whatever they want there. They decide to use this power not only for their assigned "find the murder weapon" assignment, but also to hunt a serial killer that seems to be being covered up for some reason. As the stakes climb higher, it becomes more and more uncertain if they will both make it back to reality alive.

This was an interesting little sci-fi novella. It played with familiar tropes in a way that was creative and still exciting. There wasn't a whole lot that totally blew me away, but I did have a fun time throughout following where the plot was going. This is also a little on the introspective side for a sci-fi detective novella, which I found refreshing. A fun, quick read for people who like a detective story with a twist.