A seemingly suicidal fall leads to a string of murder cases from more than a decade ago. As the investigation deepens, Ji Nian, long hailed as a genius detective, shoots and kills someone during a kidnapping case. A second case lies hidden within the first, and his first love, An Qing, becomes a key figure in the investigation. As Ji Nian painstakingly pieces together the clues, the truth behind the twin murders from ten years ago, the disappearance a decade later, and the suicides and falls finally comes to light. But his love with An Qing had already ended ten years ago. All that remains is his hopeless wait and her use of him in her desperate quest for revenge.
Is the male and female protagonist be or he?