The bottom line is anticipated in this case by the heading! "For a long time the first convincing horror film" The film slowly builds up and then generates a such gloomy and disturbing atmosphere that the armrests of my chair television, in which I clawed me more often, had to suffer quite! Little Spoiler: Even the exorcism scene is properly managed times. In other films has been often times made by all broken, w ecause they were pretty ridiculous (eg "Possession, the Dark in you", the otherwise quite successful idea and good story plot brought)! For me clear 5 Stars!
