The acting impressed me. It wasn't just the protagonist who gave her all but all the supports too. The Five main leads including the protagonist portrayed their characters' truth.
To tell the protagonist's story the actions and mistakes of the other four characters were pivotal and did they do justice to that.
The antagonist, I almost cannot designate her as the antagonist because of the complexity of the story. Just as I would not be able to see the other ones in all good light. Such a complexity is necessary to tell a story so sensitive.

Story had a chance but sadly not well executed.
There are more chances one would be confused by the ending then accept it as an open ending.
As I mentioned the theme is a complex one and though some boxes were checked, many other weren't and the movie ended up lacking. And towards the end one would scratch their head trying to decode the message which shouldn't have been the case.