New Yorkers Carter and Seth are music producers, obsessed with the sounds of the past. They are young, hungry and talented. But one day they stumble on an old blues song - an undiscovered gem just waiting to be found - and accidentally summon the ghosts of a brutal past .

Seeking answers, Seth travels deep into the heart of the old South, accompanied by Carter's bewitching sister Leonie. But this is America, where tugging one loose thread can unravel a bloody history of injustice. Yet the closer Seth gets to the haunting truth, the more he feels pursued . . .