We the Animals (2018)

Mom and Dad work hard to provide for their three boys, but there's not much to spare. Still, they're generally happy. Jonah, the youngest, keeps a secret journal, which he crawls under the bed at night to fill with art and thoughts. 

After a particularly violent fight which results in Dad leaving and Mom taking to bed for a week or two (first to heal from injuries, then due to depression), the boys have to fend for themselves. During this time, they're conflicted about where their loyalties lie. Even after Dad returns, the relationships continue to be strained by the ever-present lack of enough -- either of money or stability. 

It's an honest portrait of a struggling family with Jonah, the sensitive soul, just trying to make his way through it.

B