Confined to an asylum for the criminally insane, Nica Pierce is convinced that she, not Chucky, murdered her entire family. But when the psychiatrist introduces a new therapeutic "Good Guy" doll with a familiar face, a string of new, grisly deaths leads Nica to wonder if she isn't crazy after all.
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.