Father Is a Dog (2010)

A mentally-handicapped young man, a sex-obsessed tortured artist, and their responsible but somewhat prideful brother are all grief-stricken in the wake of their mother's death. The three brothers live with their father, a withdrawn and abusive parent who offers no consolation to his mournful sons. The dysfunctional family's dynamic is further complicated when the father strikes up an eccentric sexual affair with a Chinese man who is nearly the same age as his own sons.

Unfortunately the movie Father Is a Dog is not yet available on HBO Max.