Writer-producer Ragnar Bragason renders the story only on a superficial level, developing Hera's character primarily through changes in wardrobe, hair and makeup.

It taps into something universal, and very precious, about loss, art and adolescent rebellion.

The film deftly marries the essence of the music to a moving coming-of-age framework.

It features a sober performance by Thora Bjorg Helga, with which its director, Ragnar Bragason, composes a melancholic portrait of pain, guilt and loss to the rhythm of heavy metal. [Full review in Spanish]