This had potential, there is a good movie inside this movie, just not the one i watched.
It's like this movie has a beginning and an end but not anything in between. This want to be a "character study" but there is not a smooth transition in this leading character's development: He is always immature and suddenly he supposedly has an epiphany. There is no chemistry between him and Nadja, are we suppose to believe that she is attracted to him? Why? How? And the ending is just lazy writing. Symbolisms are naive. And it's "easy". Big events are easy. A more lowkey approach would be better.
Having said that, this is a somewhat good slowburn drama, not a "heavy" drama, neither a comedy as it labelled. I loved the song. Kinda interesting, some intense moments, subtle and well acted. As another reviewer mentioned, "That works up to a point, but there was too much missing from the puzzle for me to really find myself engaged with any of them".