Aurelio Zen's final case brings him to remote town of Calabria, at the toe of Italy's boot, on what is supposed to be a routine the death of a scout for an American film company. But the case is complicated by a group of dangerous strangers who have arrived to uncover another local mystery - buried treasure - and who will stop at nothing to achieve their goal. The case rapidly spirals out of control, and Zen must penetrate the code of silence in the tight-knit community in order to solve the crime.