Yung Lean: In My Head is a riveting generational tale portraying a young boy's passage into adulthood as well as his journey through fame, drugs, friendship, and mental illness. At the age of 16, after releasing a video on YouTube that quickly reaches millions of views, Yung Lean and his Sad Boys are touring the world, wooed by some of the biggest names in music, including Frank Ocean, Travis Scott, and Justin Bieber.