Children of the Corn

Children of the Corn is a 1984 American supernatural slasher film based on Stephen King's 1977 short story of the same name. Directed by Fritz Kiersch, the film's cast consists of Peter Horton, Linda Hamilton, John Franklin, Courtney Gains, Robby Kiger, Anne Marie McEvoy, Julie Maddalena, and R. G. Armstrong. Set in the fictitious rural town of Gatlin, Nebraska, the film tells the story of a malevolent entity referred to as "He Who Walks Behind the Rows" which entices the town's children to ritually murder all the town's adults, as well as a couple driving across the country, to ensure a successful corn harvest.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.