In 1902, 13-year-old Horace toils on a run-down plantation in rural Texas to buy a tombstone for the father he lost a year earlier. Soll, the crusty old Confederate who owns the plantation and depends on convict labor to keep his farm running, takes a liking to Horace. However, Soll is aging and sinking into senility, making the possibility of Horace ever getting his pay increasingly unlikely. On Christmas Eve, as Soll becomes obsessed with his own mortality, he makes a grand promise... forcing Horace to confront his fear of death and the harsh truths of a decadent society.
