There is some gore in “The Dead Girl,” but it is eclipsed in intensity by the verbal abuse hurled by its desperately unhappy characters at the people closest to them. The relentless emotional violence in it, a compendium of five vignettes related to a young woman whose naked, mutilated corpse is discovered on a barren hillside, is of a level rarely found in movies, even those steeped in gore. “The Dead Girl” is a movie with a chip on its shoulder.