The Contestant is a 2023 British documentary film directed by Clair Titley. It tells the story of Tomoaki Hamatsu, better known as Nasubi, as he starred in a 1998 Japanese reality TV show. From Wikipedia
Nasubi, a Japanese comedian, endured a grueling 15-month ordeal on a reality TV show without realizing his suffering was broadcast to millions, now detailed in the Hulu documentary 'The Contestant'.