Private Investigator Sarah Booth Delaney and her partner Tinkie are in Sheriff Coleman Peters' office, asking Coleman about cold cases, when Elisa Redd storms in with a case her own. She wants Coleman to reopen the investigation of her missing daughter, Lydia Redd Maxell, the heiress to a large fortune who disappeared along with her friend Bethany 10 years ago, while the two of them were working as human rights organizers. Now Lydia's husband, Tope, is set to inherit the fortune, and Elisa suspects he's behind the disappearance. Armed with a pile of mysterious notes mailed to Elisa over the years, Sarah Booth and Tinkie follow an increasingly twisty trail leading all over Sunflower County, leading them to a tree and an empty grave in the county cemetery. A grave that's said to be haunted...