The poster said that we were all cheated by the director, and the future can be changed. But in fact, the original poster was deceived by the director.
The future cannot be changed.
The doctor printed the photos a few weeks later and saw the blood stains and coils on the photos. He felt that something bad had happened, so he wanted to avoid this. So decided to start with the coil. But it led to his accidental death. In fact, this part is also a part of promoting the future.
The heroine found the camera, thinking that it could change the future, so she guided herself in the past by taking pictures. However, the change she thought was actually contributed to the photos the doctor saw.
So in the end, she killed two people, thinking that as long as she took a photo to remind herself of yesterday not to make a mistake, she could change the murder situation. But in the end we also saw that the paper fell to the ground, and the scene became the scene of the photo the doctor saw.
Therefore, the future will remain the same from beginning to end.
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