Actors really carried the movie to the top.
Writing has numerous illogical occurrences. *Spoiler alert* Where the spirit used to haunt the victims and then kill them slowly, the murder of the second daughter turned out to be pretty out of the place. Also sudden disappearance of first daughter on exorcism day and then her return at the worst moment was not clearly narrated. If writing would have been a little bit more better, then this movie had potential to one of the best horror film considering decent graphics, dedicated acting by the whole cast and immersive plot and progression.