Children of the Corn IV: The Gathering

Children of the Corn IV: The Gathering is a 1996 American supernatural slasher film co-written and directed by Greg Spence and starring Naomi Watts, Brent Jennings, and Karen Black. It is the fourth film in the Children of the Corn film series. The plot follows a medical student returning to her hometown in Nebraska, where she finds the children to be falling under a mysterious mass illness connected to the town's past.

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

Poster © the film's rights holders.