A Grave Business is a humorous yet somewhat sinister and suspenseful mystery set against the backdrop of the New Orleans French Quarter prior to Hurricane Katrina, with its jazz culture and history of 'dark' religions and cemeteries. Xav and Linc accidentally stumble upon a racket through misdirected emails and coded newspaper messages. Their investigations lead them into the dark world of cults, crypts and midnight escapades. The Neville brothers provide an unwelcome threat to their schemes.