Fireflies in the Garden (2008)

A family with an abusive father, a sensitive son, and a mother out of her depth: we see them when Michael is about 12 and when he's in his 30's, a writer of romance novels, going home for his mother and sister's college graduations. We go back and forth between the two periods: when Michael is a boy, the pressure builds until a break is threatened and there's a fight; during his trip home, there's an unexpected death, and renewed relationships between father and son, Michael and his aunt, and Michael and his aunt's young children. Michael's estranged wife joins them for the funeral.