JR's is an all-around investigation type FNaF fan-game. Each night, a select bunch of animatronics becomes haunted, and it's your job to weed out which ones are haunted, and which ones aren't. Search for clues and hints throughout the nights, in order to lead you who is possessed.

After agreeing to take part in the ongoing JR's investigation, you are greeted by a passive spirit named Paulbear; a helper on your journey to flush out the evil that hides within the creepy old animatronic suits. However, that evil wants something other than your life: it wants Paulbear.