I must say that I am much more impressed by the film, as I would have thought first. Although the characters are partly somewhat dubious and untrustworthy (and also the actor's performance is not outstanding), but overall, the subject developed very nicely. Also, there is not an absolutely new plot, but he is well told. Overall it's a nice thriller for a gloomy evening coffee.
!!! WARNING SPOILER !!!
The end is very satisfying, precisely because there are times no happy ending. The idea that the anti-Christ Superstar will but born and then adopted, I find very satisfying as a finale. The final scene between Demon and priest I find but totally lousy. This voice of the demon and his obscene drivel - looks more silly than sinister.