Sixty years ago a giant grotesquely disfigured man roamed the woods of a rural Louisiana community. The locals cruelly nickname him Onionhead. When a young girl was found murdered, he was wrongfully blamed. An angry mob came for him, killed him then buried his dismembered remains in an unmarked grave. Many years later a young teenage couple meets the resurrected monster, when four children unwittingly release him from the grave that trapped him for decades.