That opening establishes the tone of “Midnight Miami,” the first book in S.M. Chase’s Grits & Gravy mystery series. Four similar killings have occurred, each involving a victim found with a matchbook from Midnight Miami, the city’s newest and most exclusive nightclub. “Midnight Miami” relies heavily on sexual jokes, racial insults and deliberately offensive characters. “Midnight Miami” is loud, violent, knowingly ridiculous and often very funny.