In 1979, journalist James O'Connell pursues a story his editorial department refuses to touch: the buried history of the Hudson family, wealthy landowners who operated a plantation near New New Orleans along the Mississippi River around 1830. Benjamin Hudson kept slaves from Africa whom he subjected to horrific abuse, yet his political connections shielded him from justice. Over a century later, O'Connell travels to Louisiana, convinced the full truth is still hidden inside the old Hudson estate. The records are sparse and the locals are not eager to talk — but the secrets of that mansion have waited long enough.