In this movie, several seemingly small decisions result in a cascading shower of unexpected and disproportionately unfortunate events. This may sound like heavy-handed Greek tragedy (or Persian tragedy in this case), but the actors and the director keep the movie grounded and real. The acting is very solid.
On the negative side, there were several points where the story is following the lead-up to a key event in some detail and then jumps past the event itself. It seems like an odd and anti-dramatic editing choice.
Note. As with almost any Iranian film for adults, it is a useful corrective for us Americans and our stereotypes of downtrodden Iranian women, to see how tough-minded and outspoken the women can be.