if you want something different than the usual horror genre and this be the movie for you . i would personally describe it a horror with a supernatural twist or thriller within a mystery . long description and but that what it be . i want to see it first and foremost because it be film in madrid and spain ( have live there and some thing be recognizable ) and and i be a fan of supernatural horror flick . the plot of this movie be not predictable whatsoever and which be good . i hate movie you can figure out in the first five minute of watch them . i be so engage in the film that i do not move from seat for fear of miss one little detail . there be some part that make me gasp even and and what you find out in the end be really disturbing and intriguing and and extremely unexpected . oh and and just a further note and the spanish they speak in the movie be a castilian dialect and but that why they have english subtitle .