Good not great

Rating: 6/10 (7 June 2015)

!SPOILER! ish. *Tried to avoid doing spoilers and making vague references to what happens without going into detail of any of them, so it's relatively safe to read if you haven't watched the movie, but if you want to go in completely fresh then.....*
So I saw people praising this film as intelligent and smart, and to that I say...no. Rather ironically, it falls apart the moment you stop to think about it instead of immersing yourself in the now without thinking about the 'it' and 'it's rules. The moment you do though.....
So the movie is essentially about supernatural STDs, a bit of oversimplification here, but that's what it boils down to to. The main character has to get rid of the very deadly Ghostherpes by passing it off to someone else.
Now heres the rub, the movies gives us some very vague rules as to how 'It' operates, but you, as the audience put yourself in the hoes of the character and begin to strategise, and to find a way to live. Unfortunately, the characters in the movie don't really do this. They barely think ahead, and I can only think of a single instance in the movie where they tried to beat it.
But then the rules are rather nebulous and vague anyway, I mean you contract it by sex, what penetration, does oral sex count? What about lesbian sex(strap-ons, yes/no?), gay sex, or does oral count? How does it work in orgies, does 'it' have to go through the entire group of persons to get back to you? And about travel, so it walks everywhere right? Does it walk under the ocean, does it fly, can it float, can you not simply sleep with a Japanese business man, someone from Sweden, someone from India, and a prostitute from Thailand, and you'd be safe for the rest of your life? Or simply go to another country? Or just do a roundstate trip, keeping just ahead of him like a not quite green Banner banging every you come across? Harder for a guy to pull off, but much easier for a gorgeous and young lead lady.
And apparently it's a physical manifestation as well, and seemingly intelligent, but it can be slowed down by bullets, so does this mean it can be blown apart, or captured? Now you may or may not think of any of these things, but of the 5 or 6 characters within this film, all they've managed to come up with is running off to some place not very far away and try to take it out in a well.....well it's something a plan a 12 year old would come up with to be honest.
So the movie does kind of end up being the sort of dumb supernatural horror movie, where thinking too much can hurt it, but if you don't do that, immerse yourself in the atmosphere, and if you can stomach the music(it wont be for everyone) and are cool with the slow pace reminiscent of older horror movies, then this may be for you.
The idea itself is a good one, but the rules and severe lack of imagination beyond the core idea, and the characters' within the film hurt it a bit I feel. You can have a simple yet elegant idea, but your simple idea needs to be solid as well.