High school is often considered one of the most difficult times in a person's life - but while hormones and cliques can be truly awful, few of us have faced the horrors recounted in Unknown Number: The High School Catfish, a new Netflix documentary about a cyberbullying incident that spiraled far beyond expectation. The Watch With Us team breaks down why you need to watch this darkly fascinating documentary, which sometimes feels more like a horror film, in September 2025 - find out more below.