Chateau Sauvignon:terroir follows Nicolas, the isolated adolescent son of a ruined vintner family, who finds himself torn between obeying his boorish father and saving his ailing mother. When a doting woman and her indifferent son arrive for a wine tasting, Nicolas sees an opportunity to help his mother and prove his worth to his father. However, his wayward plan quickly takes a turn for the worse, putting his family’s secretive murderous ways in peril of being unearthed.