WARNING: This article may contain spoilers!
During this hour, all three dolls: Kiki, Mr. Tatters, and Chester become active.
There is no set strategy to deal with this aside from standing as close to a door as possible and having the flashlight.
A glitch has been found that allows the player to survive at ease. If one stands in the corner next to the hole leading to the basement, only Mr. Tatters can attempt to attack the player. Chester and Kiki will become stuck and not be able to respawn or kill the player. For some consoles, this glitch has been modified, as there is a box to now block the area.