Shi Miao and Su Da are good friends. The two have completely different personalities. Shi Miao is taciturn, while Su Da is lively and cheerful. The two grew up together and were almost inseparable. One day after school, Su Da ignored Shi Miao's dissuasion and forced her to go to the bar to play. The light in the bar was dim and there were many people. Shi Miao accidentally got separated from Su Da. At the same time, she also encountered an unexpected situation. Shi Miao was lured out of the bar, but Su Da fell from the sky, hit the ground hard, and died in front of Shi Miao.
A few days later, it was Su Da's funeral. Shi Miao felt something was wrong at the funeral, but she couldn't explain what it was. She could only stare at Su Da's photo in silence. Su Da's black and white face in the photo frame had a bright smile.
Suda's death was like a pebble thrown into the water without causing any ripples. Time passed slowly, and just when the sadness was slowly forgotten - Suda caught up with her.
Su Da is in ghost form and tells Shi Miao that there is another hidden reason for her death, that she was murdered, and asks Shi Miao to find the murderer. But due to some reasons, Su Da also forgot the appearance and name of the murderer. Shi Miao could only rely on some fragments of Su Da's memory to find the murderer. While digging for the truth, more and more incredible things began to appear. At the same time, she gradually began to doubt whether she really understood Su Da. After experiencing a series of thrilling events, Shi Miao discovered the murderer, but the other party admitted that he killed Su Da in an abandoned building. So who died in front of Shi Miao?
Sudha laughs and disappears. But Shi Miao also began to become mentally confused. At midnight, she would fall into one dream after another, with the monsters in the dreams and Suda relentlessly chasing her. Space is distorted and memory is confused. She couldn't tell the difference between Shi Miao and Su Da.
Purpose: Everyone has selfish motives