On a summer evening in the blue-collar town of Amicus, Kansas, the Campbell family gathers for a birthday dinner for their ailing patriarch, retired judge Abel Campbell, prepared and hosted by their still-hale mother Hattie. But when Billy, the youngest sibling --- with a history of addiction, grand ideas and misdemeanors --- passes out, the family takes up the unfinished business of Billy’s sobriety. Billy’s wayward adventures have too long consumed their lives, in particular Hattie’s, who has enabled his transgressions while trying to save him from Abel’s disappointment. As the older children contend with their own troubles, they compete for the approval of the elderly parents they adore but can’t quite forgive.