A murder takes place in the underground parking garage of an old residential complex. The investigation reveals that the case is not what it seems, and various clues point to a resident named A Jing as a major suspect.
As the investigation progresses, the secrets A Jing has kept hidden are gradually brought to light.
What happened when he met Zhang Chuanlan for the last time? And where did the scraps of paper at the crime scene come from?
Everyone has many sides to them. Do they know it themselves?
