Frankie, a young bartender disenchanted with life in the 21st century, meets Link, a mysterious man who appears to disregard all kinds of rules. Together they start uploading anti-mainstream rants onto the internet. With the help of Jake, the group ascends to digital stardom. However, none of them are prepared for the challenges and pressures that their new lifestyle entails. A journey into the dark side of the online world, Mainstream is a cautionary tale about the psychological effects of social media, presenting a reflection on the unique and paradoxical combination between narcissism and insecurity that it creates.