Could have been five, but missed a few details. First, the title doesn't describe the essence of the story. Second, the cover doesn't covey it either. OK, picky points over. Third, the ending (some directors are prone to this cutesy & nebulous non-creative trick) leaves the viewer hanging, e.g. wasn't clear who was on the phone. Fourth, we didn't get enough of the background of Mary's character and what sent her to jail. One of the central themes is the transformation of Mary which for some viewers to understand requires more background. The disfigurement of a person is not a trivial matter to not address. Won some awards at an Irish film festival.