With a premise as insane as this—a high school coming-of-age film adapted from 410 consecutive tweets from a real, random Thai girl under the username @marylony—you would expect Mary Is Happy, Mary Is Happy to be some sort of incoherent commentary about social media. What director Nawapol Thamrongrattanarit gives us instead is a completely original and surprisingly affecting portrait of a young woman in her senior year trying to come to terms with the fact that her life may only ever be a mess of incongruous parts without a definite identity. It’s as whimsical as it is bittersweet, with the film flitting back and forth between the absurd and the melancholic.

Thamrongrattanarit structures his film as a series of loosely connected vignettes, with every single one of @marylony’s tweets appearing on screen. The effect is one-of-a-kind—as if we’re watching different layers of meaning constantly interacting with each other, our understanding of what we’re supposed to think of as serious or tongue-in-cheek always changing. And through the film’s deliberately lo-fi aesthetics, the experience of watching it is like flipping through a scrapbook of memories mundane and precious.