After their reclusive grandmother passes away, the Graham family begins to unravel cryptic and increasingly terrifying secrets about their ancestry. The more they discover, the more they find themselves trying to outrun the sinister fate they seem to have inherited.

An astonishing record of the hereditary nature of trauma, Jacinta follows the lives of three generations of women struggling to find stability amid years of dependency. Jacinta leaves the Maine Correctional Center, leaving her mother behind to complete her own sentence, and attempts to rebuild her relationship with Caylynn, her preternaturally wise pre-teen daughter who craves time and attention from the mother she adores. But as the pressures of shaping a life in a world she has hardly known sober proves increasingly challenging, she brings the viewer into her emotional, day-to-day battle to find peace with herself and earn the trust of her family.