From the plot outline I read I was expecting one of those save the world sci-fi films but instead what to me this film seemed to be about was a sort of tug of war for by the angel and demons for the soul of DD. It seemed to me the character Lova was meant to be an angel sent to get DD to remember his sins, repent and become a better person where as "man in suit" (we never get his name and that is literally his credit) is the Devil, trying to keep DD in his sinful ways so that his soul will end up in Hell. I don't think anyone else got this impression but there were things in the film like when Lova says she is sensitive to fire, that made me think she was an angel and the other guy the devil.
But if you're reading this and thinking that sounds cheesy and lovey dovey (because lets face it the US versions of these types of movies are) then don't worry, it's dark and gritty and doesn't shy away form the hard stuff to a point where you question whether you should feel sorry for this character. And there's no Bible bashing (except for the scene where a Jesus of Latter Saints guy asks the Devil if he wants to be saved by Jesus). And though the ending might make some people think "but I want to know more" I found myself rather satisfied with the ending. Over all I liked this film, it was a refreshing, if not violent take on Angels vs Devil themed films.