A young night security guard, Mike, takes on a new job at Freddy Fazbear's Pizza, a once-popular family restaurant that's fallen into disrepair. On his first shift, he discovers that the establishment's main attractions, a group of animatronic entertainers, possess a horrifying secret. As the night progresses, Mike learns through scattered clues and phone messages left by his enigmatic predecessor that these seemingly harmless robots take on a life of their own after dark. Fueled by rumors of mysterious disappearances and dark past events tied to the restaurant, Mike's initial skepticism turns to terror as he struggles to survive the increasingly aggressive behaviors of the animatronics.

Isolated within the labyrinthine corridors and rooms of the deteriorating pizza place, Mike must utilize the limited resources at his disposal to protect himself. He is forced to rely on security cameras, quick thinking, and strategically timed door closures to evade the relentless robotic predators that roam the building. Meanwhile, young Sarah, a relative of one of the restaurant's previous victims, begins her own investigation of the disturbing truths hidden within the walls of Freddy Fazbear's. Her journey intertwines with Mike's ordeal, peeling back layers of deception and corporate conspiracy, as both confront the haunted animatronics' gruesome desires and the possibility that they hold the souls of previous victims seeking release or revenge.