Rupert Friend is sensational in this.
Wes Anderson’s recent features usually have multiple timelines. That’s not the case here, but it comes close: the retelling of this story by its narrator, along with the loose visual suggestions throughout, encourage the viewer to create their own mental film of the previous timeline in their mind. (Unless you have aphantasia, I suppose.)
I was bullied to the point of lifelong trauma as a kid. The ending very nearly broke me.