El castillo a través del espejo

What if our mirrors were portals to a world that is different from our own? This is the extraordinary discovery that seven teenagers with complicated and lonely lives come across, all of whom will be able to access a wondrous castle through the mirrors in their rooms. There, a girl in a wolf mask invites them to play a game. An adaptation of a hugely popular novel of the same name in Japan, which was first made into a manga series and now has been adapted for film.