Confined to an asylum for the criminally insane for the past four years, Nica is wrongly convinced that she, not Chucky, murdered her entire family. But when her psychiatrist introduces a new group therapy tool, a "Good Guy" doll, a string of grisly deaths plague the asylum and Nica starts to wonder if maybe she isn't crazy after all. Andy, Chucky's now-grown-up nemesis from the original Child's Play, races to Nica's aid.