On the night when the murder case resumed, Lin Zhaoqing woke up in the bloodstains of the abandoned factory with no memory except that he was the only witness. The police determined that she had a secret connection with the deceased, but Criminal Police Captain Cheng Jibai saw a look of fear in her pupils that was consistent with the unsolved case five years ago. When all the evidence points to her, and when the witness testimonies are erased one by one, only Cheng Jibai insists that she is not the murderer - because he once saw her standing in a pool of blood in a dream, and that dream was the unsolved mystery that he locked into the file with his own hands.
