The trailer may leave you with a taste of a Gothic horror, which Haunter is definitely not. Closest resemblance is probably Others, and I'd also name Saint-Ange and Awakening for some similarity in its atmosphere.
I may safely agree with the other reviewer that Haunter is not scary at all, just couple of very primitive boom-based jumpers.
Keep in mind that the Haunter director (Vincenzo Natali) once shoot such gem as Cube, and it shows through all 97 minutes. The movie is claustrophobic and weird,it's cheating you on time and dimensions, and that's the best part. Very solid directing, script and acting yet nothing that can leave you thinking further or wondering.
As soon as you realize that lots of ideas are brought from Cube the Haunter loses on IMDb stars instantly.
Still don't get me wrong, it has its own developments, and I personally liked the way Vincenzo Natali delivers moody look, creative frames, and elaborated sets in a very contrast to minimalistic Cube.
To sum up: a solid 6/10 - not impressive but very fair dish for ghost genre lovers.
