After 6-year-old Andy Barclays (Alex Vincent) babysitter is violently pushed out of a window to her death, nobody believes him when he says that Chucky, his new birthday doll, did it! Until things start going terribly wrongdead wrong. And when an ensuing rampage of gruesome murders lead a detective (Chris Sarandon) back to the same toy, he discovers that the real terror has just begunthe deranged doll has plans to transfer his evil spirit into a living human being - young Andy!