La Muerta: Devious (La Muerta #9)

Maria Diaz aka La Muerta learns that a killer stalks the midnight streets of Mexico City, ruthlessly eliminating its criminal elite. Who is this killer? What motivates her murderous ways? And why does she wear the skull face of the infamous vigilante La Muerta? Can Maria stop the merciless pretender? Or will a dark family secret finally lure La Muerta to her demise?