Night falls and the city lights come on. Serial killer Chu Dedong constantly changes his persona as he moves through the urban jungle. A locked-room murder catches the attention of local police inspector Ning Yixin. One killer after another leaves the police clues in the form of crosses. Is he simply killing for the sake of it, or is he trying to send the world a message as part of some larger scheme? Zhuo Xi, a beautiful new policewoman fresh out of the police academy, is also drawn into the case. A meticulous, determined homicide inspector and a deranged serial killer face off in one battle of wits after another, as the two play cat and mouse. Will the bad guy finally be brought to justice?
The structure is clear, the language is casual and not artificial, and it feels very close to life.