A single mother gives her son a beloved doll for his birthday, only to discover that it is possessed by the soul of a serial killer.
When Andy's mother is admitted to a psychiatric hospital, the young boy is placed in foster care, and Chucky, determined to claim Andy's soul, is not far behind.
Eight years have passed and Chucky has been resurrected once again and seeks revenge on Andy, his former owner, who is now a teenager enrolled in military school.
Chucky hooks up with another murderous doll, the bridal gown-clad Tiffany, for a Route 66 murder spree with their unwitting hosts.
Chucky and Tiffany are resurrected by their innocent son, Glen, and hit Hollywood, where a movie depicting the killer dolls' murder spree is underway.
After the passing of her mother, a young woman in a wheelchair since birth, is forced to deal with her sister, brother-in-law, niece and their nanny as they say their goodbyes to mother. When people start turning up dead, Nica discovers the culprit might be a strange doll she received a few days earlier.
Confined to an asylum for the criminally insane for the past four years, Nica Pierce is erroneously convinced that she, not Chucky, murdered her entire family. But when her psychiatrist introduces a new therapeutic “tool” to facilitate his patients’ group sessions — an all-too-familiar “Good Guy” doll with an innocently smiling face — a string of grisly deaths begins to plague the asylum, and Nica starts to wonder if maybe she isn’t crazy after all.
After a vintage Chucky doll turns up at a suburban yard sale, an idyllic American town is thrown into chaos as a series of horrifying murders begin to expose the town hypocrisies and secrets. Meanwhile, the arrival of enemies and allies from Chucky past threatens to expose the truth behind the killings, as well as the demon doll untold origins.