Three years ago, Xu Zhiwei's sister disappeared on a rainy night.
There was no body, no witnesses, and no evidence of what happened to her. Everyone advised Xu Zhiwei to accept the conclusion that her sister just left on her own.
Until three years later, at 4 a. M., She received a text message from her sister's old number.
Don't trust the person who found me.
That number has obviously been canceled long ago.
Since then, messages three years late have appeared one after another. There are unregistered residents in an abandoned apartment, deleted surveillance videos, people who are strangers to each other but all claim to have seen her sister, and the man Cheng Jianshen who seems to know the truth earlier than she does.
Xu Zhiwei followed the clues step by step, but found that her sister's disappearance was not the beginning of the story.
What is really hidden is the secret that everyone kept together three years ago.
And this time, someone doesn't want her alive to find out.
Purpose: Find courage and self-salvation in the buried truth