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A troubled security guard begins working at Freddy Fazbear's Pizza. During his five nights on the job, he realizes that something is wrong with the pizzeria and pretty soon finds the truth about its animatronics.

In the year 2000, a desperate young man takes a job at an infamous, long-abandoned pizzeria with a dark past, bringing his little sister along. As they uncover the restless spirits and vengeful animatronics within, they must confront their own haunting memories. With the help of an enigmatic police officer, they battle to save their souls and unravel the sinister secrets lurking at Freddy Fazbear's Pizza.—Aidan Sayson

Mike Schmidt is a twenty-something man desperate for a new job. Taking a job at an abandoned pizzeria called "Freddy Fazbear's Pizza", this isn't the fun, magical place where fantasy and fun comes to life. Soon, secrets unveil, and nightmares will awaken.—beauthegeek

Desperate to keep a job to support his younger sister Abby, Mike Schmidt takes a job as a security guard at a local pizzeria called Freddy Fazbear's Pizza. The job is simple: watch the monitors for any suspicious activity. But Mike soon learns that something is happening at Freddy's, something unexpected, something evil.—devint-34563

At Freddy Fazbear's Pizza, a once-successful abandoned pizzeria, a scared night security guard attempts to flee from the building but is captured and strapped to a torture device, which kills him.

Sometime later, mall security guard Mike Schmidt is fired for assaulting a negligent father whom he mistook for a kidnapper. Mike's career counselor, Steve Raglan, offers him a job as a night guard at the pizzeria. Though initially reluctant, Mike accepts after social services threaten to take custody of his younger sister, Abby, and pass her to their estranged aunt, Jane, who desires the custody's monthly payments.

During his first night, Mike falls asleep and dreams about the kidnapping of his little brother, Garrett. He meets five children who also witnessed the crime, but they flee when he approaches them. The following day, Jane hires a gang of vandals, which includes Abby's babysitter, Max, to vandalize the pizzeria to get Mike fired and hasten Jane's custody of Abby. At Mike's shift that night, he meets police officer Vanessa Shelly, who explains that the building closed during the 1980s after five children went missing there. Once Mike's shift ends and he leaves, the vandals break in, but the pizzeria's animatronic mascots - Freddy Fazbear, Bonnie, Chica, Foxy, and Mr. Cupcake - kill the entire group. Max's disappearance forces Mike to bring Abby along on his next shift, in which the animatronics befriend Abby and Mike discovers that they are possessed by the ghosts of the missing children, who consistently mention a "yellow rabbit".

On the fourth night, Abby is accidentally injured when she, Mike, and Vanessa are bonding with the animatronics. The next morning, Mike reluctantly gets Jane to babysit a frustrated Abby as he goes back to the pizzeria and takes some sleeping pills. The children appear in his dream again and tell him that he can stay with Garrett forever in exchange for Abby. Mike initially accepts, but when he changes his mind, he is attacked. After being strapped to the torture device that killed the previous guard and narrowly escaping, Mike is cornered and injured by Foxy. Meanwhile, a damaged yellow Freddy animatronic, possessed by the leader of the children, kills Jane and takes Abby back to the pizzeria.

Vanessa treats Mike's injuries and reveals that she is the daughter of William Afton, the serial killer who kidnapped and murdered Garrett and the other children. He hid their bodies in the animatronics, and now, their souls are under his control. Realizing the animatronics plan to kill Abby and have her join them in the afterlife, Mike rushes to the pizzeria. He defeats the animatronics, but Steve arrives wearing the "yellow rabbit" suit, reactivates them, and reveals himself to be Afton. Mike tries to incapacitate Afton, but is easily overpowered. Vanessa also attempts to stop Afton, but he stabs her with a knife. An injured Mike reminds Abby that the animatronics like drawings and tells her to show them what really happened. Abby draws a picture of Afton murdering the children to free them from his influence and make them realize the truth. With Mike's help, Abby shows the drawing to the animatronics, who turn on Afton. Mr. Cupcake bites off part of Afton's suit, triggering its internal spring lock mechanisms, which trap and fatally wound him. As the animatronics drag Afton away, Mike and Abby carry Vanessa out of the collapsing pizzeria.

Some time later, Vanessa has fallen into a coma and is hospitalized, while Mike and Abby have reconciled and resume their normal lives. Back at the pizzeria, the leader of the children watches a dying Afton in the suit before leaving him to his fate.