South America — a continent with several rich traditions of black magic; not to mention Catholicism, magic realism and a recent history littered with political and social upheaval — has yielded a steady stream of genre fare. To that growing list, Brazilian writer-director Samuel Galli contributes his assured debut feature Our Evil (Mal Nosso), a genuinely original horror movie that proves unpredictable, provocative, affecting and creepy. Using impressive physical effects, Our Evil features gruesome gore sequences which never descend into gratuitousness.