Detroit debutante/investigative journalist Iris Edwards gets more truth than she can handle when she tackles her rich and infamous grandfather's tell-all biography. Partnering with his Ojibwa Indian doctor to find the old man's "unforgivable sin," they unravel an eighty year-old web of Machiavellian intrigues from an Upper Peninsula ghost town to an insane asylum and the Henry Ford Museum-to find a murderer, a hero, and a deadly secret that will rewrite history.