Erin once said that "all scientific evidence is not good for us" (to the effect), but I didn't see how disadvantaged the defense is in court. Even if the defense's testimony about demon possession was too vague and subjective, and the prosecution overturned one by one, the judge still favored the defense. Such a court is too unreasonable.
The story of the devil attacking Erin is very important, and this is an important reason why Erin believes in the priest. However, the demon's attack on Erin (and everyone except Emily) in the film is just a mere formality, and it is not even frightening compared to Emily. As for why the doctor died, and how Erin escaped the attack of the devil, they didn't explain clearly. I thought the necklace that appeared Hengkong was a foreshadowing, but it turned out to be just a decoration. While emphasizing "destiny" while inserting blunt "coincidence", it is self-defeating.
Erin and the witnesses used unfalsifiable "facts" to refute the prosecution in several scenes that were very wonderful, and Emily's interpretation also perfectly presented the atmosphere of a religious thriller. It is a pity that this movie even sacrificed the rationality of the plot in order to promote religious power. Its value may be planting the "seeds of doubting science" in people's hearts.
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