Knuckleball (2018) is a Horror, Thriller film that follows alone, and targeted on an isolated farm, 12 year old Henry finds himself at the center of a maelstrom of terror, and a dark family legacy, when his secretive grandfather dies suddenly in the night. Currently, you can watch Knuckleball on Amazon Prime Video, Amazon Prime Video with Ads, Amazon Video, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 5.9 out of 10 from 55 votes. Fans of horror movies may also want to explore similar titles below.