In a small rural community, a local storekeeper, Ed Harley, is a widower and devoted single father to his young son, Billy. Harley is a well-respected man, leading a simple life surrounded by vast fields and tight-knit neighbors. Tragedy strikes when a group of city teenagers visiting the area for a vacation accidentally kill Billy in a reckless dirt bike accident. Consumed by grief and rage, Harley seeks the help of a reclusive witch in the surrounding hills, hoping to invoke an ancient justice from a dark world of folklore.

The witch heeds Harley's call for vengeance, awakening a vengeful demon known as Pumpkinhead. Bound by blood to the one who summons it, the creature begins hunting the teenagers one by one, serving as a relentless force of retribution. As the supernatural consequences of his actions begin to unfold, Harley is confronted with the terrifying reality that his quest for revenge may come at a higher price than he ever anticipated, challenging his moral boundaries and putting his soul in peril.