Unknown Number: The High School Catfish (2025) is a Documentary film that follows vulgar, taunting texts blow up the phones of a teen and her boyfriend. Who's sending them — and why? This twisty documentary reveals the shocking answer. Currently, you can watch Unknown Number: The High School Catfish on Netflix, Netflix Standard with Ads. Streaming availability may vary by country and platform over time. It has a user rating of 6.8 out of 10 from 206 votes. Fans of documentary movies may also want to explore similar titles below.