AllMovie

Two siblings, Cal (Avery Whitted) and his pregnant sister Becky (Laysla De Oliveira), are on a road trip when they hear the cries of a young boy (Patrick Wilson) coming from a field of tall grass beside the road. When they venture to rescue the boy, they soon discover that a sinister force is trapping them in the tall grass. Based on the novel by Stephen King and his son Joe Hill and directed by Vincenzo Natali.