Mia moves to a new school, where she has to deal with making new friends, tries to fit in with the cool kids, and faces a terrifying physical transformation.
This is a coming-of-age-body-horror tale not unlike “Raw” or “Ginger Snaps,” where the physical transformations of puberty are amplified to horrific levels while the person suffering the change tries to cope with sex, drugs, alcohol, and generalized rebellion, before finally embracing the transformation in all its terrible glory. It’s pretty brutal and stark, but also poetic and lyrical; that mix makes it a highly recommended watch.
Also, thank goodness for subtitles; I think I could probably have caught a lot of this had it been in standard German as taught in American universities or spoken in Bavarian cities, or even in a Plattdeutsch dialect, but Swiss German really is its own thing.