Whole story quite interesting, but frustrated about the ending. The ending is too simple. The demon just die like that. Its too easy. The demon should suffer more after what he been doing. It seem the demon already told the guy how to kill him from the start by ending the shaman life. And i dont understand what purpose of all the ghost posses the policeman body. Just to give a moral support? While the demon become powerful after absorbing those souls? Seem unfair