Between the usual creepiness of a cop drama episode featuring a serial killer, and the absolutely chilling and mysterious woodworking that pops up throughout the episode, this is by far one of the most bone- chilling episodes I've ever seen. It ranks with the Blair-Witch-Project spoof in Bones. And the final reveal, with the Axe Man getting the last laugh as we discover what the woodworker has been making, just makes your blood go cold.