Nica Pierce is convinced that she killed her family. Nevertheless when her psychologist presents a brand new therapeutic"tool" to facilitate his patients' group sessions -- an all-too-familiar"Great Guy" doll using an abysmal grinning face -- a string of grisly deaths begins to frighten the asylum, also Nica starts to wonder if she isn't mad after all. Meanwhile, the Andy Barclay, Chucky's currently all-grown-up nemesis from the initial three Child's Plays, races into Nica's aid. However, to rescue her he'll have to find past Tiffany, the longago bride, who can do any such thing mortal or depraved, to help her beloved wicked devilish doll of Chucky.