In this city where lights never sleep, the days are too long and the nights are too short.
A nightclub woman was murdered mysteriously. When she was found, the place was so clean that it was chilling.
Detective Lin Zhao discovered during the investigation that her death was strikingly similar to a disappearance case three years ago.
As the clues unfold, it seems that there is a pair of invisible eyes behind the surveillance cameras, watching the entire city.
"There are no shadows during the day" - is that a crazy statement, or a prophecy?
When the truth surfaced, Lin Zhao discovered that light was not salvation, but the deepest darkness.
