Mária, a retired teacher, one fine day decides she no longer wants to feel like a cow, and when not even the mayor helps her against the arrogant source of local evil, she obtains a gun and resolves to do what most of us occasionally think of but immediately banish from our minds. Very soon, however, she discovers that just as murder is morally complex, it is equally complex logistically, despite her former pupil, now on probation, offering her this priceless life advice: “Crime only looks simpl...