You've got followers... Cyberbullying goes offline during one deadly night. Based on a shocking true story, #Horror follows a group of preteen girls living in a suburban world of money and privilege. But when their obsession with a disturbing online game goes too far, virtual terror becomes all too real. Chloë Sevigny leads an ensemble cast that includes Natasha Lyonne, Taryn Manning, and Timothy Hutton in Tara Subkoff's directorial debut.