In shooting, the back of the head and the long shot are its characteristics, which make the whole story happen calmly.
In the editing, there are constant interspersed and flashbacks, allowing the audience to try to find some clues.
Soothing shots and music turn into manic sounds at the end.
And the outburst of the good boy who was submissive at the last moment really shocked us.
The reasons for the crimes of two high school students can be slowly found out from the movie, there are too many.
It is family, school, and social factors that ultimately lead to their madness.
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