Plot

The plot follows the outcast Corey Cunningham who falls in love with Laurie Strode's granddaughter while a series of events, including crossing paths with Michael Myers, drives him to become a serial killer.

Four years after the events of last year's Halloween Kills, Laurie is living with her granddaughter Allyson and is finishing writing her memoir. Michael Myers hasn't been seen since. Laurie, after allowing the specter of Michael to determine and drive her reality for decades, has decided to liberate herself from fear and rage and embrace life. But when a young man, Corey Cunningham, is accused of killing a boy he was babysitting, it ignites a cascade of violence and terror that will force Laurie to finally confront the evil she can't control, once and for all.—Official Synopsis

Haddonfield, Halloween night, 2022. In the aftermath of Halloween Kills (2021) and a life-altering incident that shocked the community, haunted survivor Laurie Strode realises she has spent the last four years trying to pick up her pieces. But with brutal masked murderer Michael Myers lying low, waiting for the right moment to strike, Laurie hopes to find closure by writing an impassioned memoir. In the meantime, her orphaned granddaughter Allyson has struck up a friendship with Haddonfield's traumatised young pariah Corey Cunningham. As pure evil infects the town, a drastic transformation occurs, and a spate of senseless violence terrorises the neighbourhood. Has the monster returned to finish off Laurie, the one who keeps escaping death?—Nick Riganas

Four years after the events of the 2018 massacre, Laurie Strode is finishing writing her memoir and is living with her granddaughter Allyson. Michael Myers has vanished without a single trace. Laurie has decided to let go of her traumatic past and embrace life, but that changes when a young man named Corey Cunningham, accused of killing a boy he was babysitting partners up with the infamous serial killer, it forces Laurie to come face-to-face with the epitome of evil and finish off Michael for good.—buickcar-90431

On Halloween night in 2019, 21-year-old Corey Cunningham is babysitting a young boy named Jeremy, who pulls a prank on Corey by locking him inside the attic. Just as Jeremy's parents come home, Corey kicks the door open and accidentally knocks Jeremy over a staircase railing to his death. Corey is accused of intentionally killing Jeremy but is cleared of manslaughter.

Three years later, the town of Haddonfield, Illinois, is still reeling from the aftermath of Michael Myers's latest killing spree in 2018,[a] while Michael has vanished. Laurie Strode is writing a memoir, having bought a new house and living with Allyson, her granddaughter, who is now a nurse. Meanwhile, Corey is working at his stepfather's salvage yard. On his way home one day, he is taunted by high school bullies and injures himself in the process. An observing Laurie brings him to the doctor's office where Allyson works. Allyson and Corey develop a relationship and later attend a Halloween party, where Corey is confronted by Jeremy's mother. After having an argument with Allyson, Corey leaves the party and runs into the bullies, who throw him off a bridge. He is dragged into the sewers and confronted by Michael, who eventually lets him go. On the way out, Corey is confronted by a homeless man. In a struggle, Corey stabs the man to death and flees.

Corey and Allyson go on a dinner date, but Allyson's ex-boyfriend, police officer Doug Mulaney, shows up and harasses them both. Corey later lures the cop into the sewer. Michael emerges and kills Doug to Corey's delight. Allyson is passed over for a promotion at work, in favor of a fellow nurse who is having an affair with the doctor. Corey then kills the doctor at his home while the nurse is killed by Michael. An unknowing Allyson plans to leave Haddonfield with an insistent Corey because of the past trauma, while Laurie becomes increasingly suspicious of Corey. After finding him sleeping in the spot Jeremy died, Laurie offers to help him on the condition that he distances himself from Allyson. Corey retorts by blaming her for the events that have occurred in Haddonfield and says if he cannot have Allyson, no one will.

On October 31, Corey returns to the sewers and successfully fights Michael for his mask. Meanwhile, Laurie and Allyson argue as she plans to leave, and Allyson, too, blames Laurie for Michael's actions. That night, Corey embarks on a rampage, murdering the bullies after luring them to the salvage yard and accidentally killing his stepfather. He then goes on to kill his mother, as well as a DJ at a local radio station, who had taunted him earlier.

At the Strode house, Laurie faux-attempts suicide to lure Corey to her, whom she shoots down the stairs. Corey then stabs himself in the neck to frame Laurie for his death in front of the arriving Allyson. Michael suddenly arrives and kills Corey. A fight ensues, and Laurie manages to pin Michael to the table. After a struggle, Allyson arrives to help subdue and finally kill him. Laurie and Allyson take his body to the salvage yard by police escort, attracting the residents of Haddonfield, who follow them in a procession, and dispose of it in an industrial shredder. In the ensuing days, Allyson and Laurie reconcile, and Allyson leaves Haddonfield while Laurie finishes her memoir and rediscovers her romance with Deputy Hawkins.