I suspect the reason Incantation was recommended to me is that it is an intimate blend of religion and horror.  A Taiwanese horror film, the highest grossing ever for that country, Incantation is in found-footage format.  Fortunately the camera motion isn’t excessive, so I was able to watch it all.  The story involves a woman ghost hunter who accompanies her boyfriend and his cousin to a site with a reputedly haunted tunnel that they plan to film.  The tunnel is on the property of the boyfriend’s great uncle.  The movie, by the way, isn’t presented in chronological order, so piecing it together may take some afterthought.  In any case, the woman is pregnant when she visits the shrine and the family, who perform strange rituals, do not welcome her.  Nevertheless, the young men persist in exploring the tunnel and discover a curse at the end of it that leads those who see it to die by suicide.  There will be spoilers to come.

The movie begins with the woman reclaiming her six-year-old daughter from foster care.  After the event at the shrine, she had herself committed to a psychiatric hospital, but now that she’s recovered, she wants to raise her daughter.  Unfortunately, the curse remains.  The girl sees bad entities and can’t make friends.  The mother grows increasingly distressed and kidnaps her daughter when she is hospitalized.  She then takes her to a different shrine but the religious master is killed by unseen forces.  She then returns her daughter to the hospital and takes the camera back with her to the original shrine.  The idea, like Ringu, is that if you see the video you will be cursed.  The important difference, however, is that if the curse is widely dispersed it will be weakened.  The viewer is, in the diegesis of the movie, cursed.

This film is of interest for a number of reasons.  One is that the deity is malevolent and only by worshipping it and obeying strict rules can anyone who encounters it be safe.  In the western world there are no malevolent deities beyond Satan, and he’s not really a deity.  The family that worships this god want to be freed of it, but the god is in a tunnel on their land.  They inherited it.  There’s an element of possession at play as well.  Those who watch the video kill themselves because the deity possesses them.  There is also no way to completely destroy the curse—it can only be passed on and diluted.  The movie is quite well done although some aspects of it are familiar from other horror offerings.  Its relationship with religions of east Asia make it a particularly intriguing example of T-horror.