There's nothing new in the plot, and the core contradictions and suspense are the same ones used in old horror films: is there a rationale for everything or is it just supernatural ghosts?
However, the tension of the film is well grasped, and the plot and suspense are introduced into the depths step by step. In addition, although this uses a religious causal explanation, the film itself does not have the performance of preaching and indoctrination at all, but simply describes a horror story.
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