The set-up was interesting even if it was super slow but it just lost itself in the third act. and the ending? well...nevermind. I also couldn't take the guy with the West Country accent seriously at all, such an odd choice for no apparent reason. Watch Under The Shadow instead.
A good and interesting yarn on angels, demons and magic. The set up and build up is very effective and enhanced by two great actors really delivering fine performances. Photo and sound design is also fitting and adds to the tone and mood. The end is a mixed bag of "been there done that" and inspired filmmaking. Still after the credits rolled I was left with a feeling this could have been more engaging than it was.
Some stunning visuals and seemingly heavily researched ideas that are disappointingly packaged into something too slow, that never comes close to as scary or emotional as the material it uses could be. Poor pacing leads to a finale that gives you everything it held back in the last 70 minutes in one burst that sucks all of the existential mystery out of the film.