While the characters are interesting and the premise is solid, the overexposition in the script all throughout makes you want to jump off the balcony as it renders something with a lot of potential into a student-level film, with brilliant actors left to deliver debutant dialogue. It's lazy, preachy, pretentious and simply put lacks tension all throughout, which for any movie but especially a drama is deadly.
At the end of the day, the only character worth caring here is Jean, thanks to Vincent Lindon's delivery, but even then it's not even clear what he really wants. Francois wants Sara, Sara wants who knows what, Jean seems to want to be a good parent yet doesn't do much for it. Weak objectives which lead to a futile, slow and boring progression.
I wish I could get the time wasted watching this back.