The Orphanage, Sariel's Children

First part of The Orphanage

Tristan has been suffering from hallucinations since before he was four years old. Ghosts live around him and whisper to him that he must kill someone. At the age of nine, after threatening one of his classmates, his adoptive parents decide to put him in a psychiatric clinic in the hope that the boy will recover, but he has more and more visions, until one of them reveals the name of an orphanage and he decides to investigate what relation this place has with the apparitions he has been suffering for as long as he can remember.