Wind in the Box: Elevator Ghost Man

In order to investigate a murder case in a residential area, the police obtained the surveillance records of the elevator at the crime scene and discovered a supernatural incident—— When the deceased died, the empty elevator ran several times, as if it was controlled by an invisible person, going back and forth between the first floor and the crime scene... What is the truth? —————— The first story in the series, an independent case, feel free to eat ~ Updated daily, completed within ten days Concept: Before the box is opened, no one knows where the wind inside is coming from.