But I think this is only half of the ending of the film. The younger sister in the fire found that her brother didn't save her but closed the door tightly and watched herself burn to death, so she was full of resentment. The little girl at the end, many people speculate that the child of the protagonist is a perverted superpower, but my thinking is that it is not the future but the past, that is, the one who put the doll on the fire is the sister of the distant past, she I want to set fire, destroy the alarm, turn everyone and myself into ashes, and I also want to confirm once again if my brother will save me when the fire breaks out. And the blurred backs of the couple in the film's ending are not the protagonist, but the protagonist's parents.
I don't know if my interpretation of this ending is reasonable.
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