Very engaging and subtle thriller - it wasn't obvious that this is a serial killer film. Most scenes are subdued and about daily life and relationships, delivered with the aloofness and seriousness common in French films. I enjoyed the way the thriller part of the film slowly crept into the main plot. Some good dialogue and outfits as well.
Kiarostami succeeds in showing us the everyday beauty of Koker, Iran and arguing against the effectiveness of authoritarian and corporal punishment in the span of ~90 mins through a very important errand that almost no one but the main character (who has almost no agency) takes seriously.
The moral, Iranian answer to the first half of 400 Blows.