READ MORE: IFC Midnight Acquires Chloe Sevigny and Natasha Lyonne Film '#Horror' In "#Horror," a group of tween cyberbullies start to be terrorized in real life. Based on a true event, "#Horror" stars Chloe Sevigny, Natasha Lyonne, Taryn Manning and Timothy Hutton. The scary movie was written and directed by Tara Subkoff in her filmmaking debut. The official synopsis reads: "#Horror follows a group of preteen girls living in a suburban world of money and privilege.