The sweetest thing Wu Chao had ever eaten in his life was the marshmallows his brother bought for him on the roadside. His brother lied to him and said they were clouds he picked from the sky.
When he grew up, the clouds floating in the sky were still one after another. However, the brother who said he would pick sweet clouds for him to eat was sealed in the police station's "File No. 272."
In order to track down the murderer and avoid the occurrence of a second victim like his brother, he became a people's policeman and opened "File No. 272".
Seventeen years have passed. With the same victim in the same location, will the murderer show up again? Will there be a breakthrough in the case without any physical evidence or clues?
Purpose: Cherish the people in front of you