What is the main story of "Chasing the Murder in a White Night"?

"Chasing the Murder in a White Night" tells the story of Guan Hongyu, who was originally carefree and became a fugitive because of a massacre. One highlight of the play is the emotional entanglement between the beautiful forensic doctor Gao Yanan and the fugitive Guan Hongyu. Gao Yanan has superb medical skills and is a cold goddess in the eyes of the public. She can dissect a corpse while chewing gum, and her calm appearance is deeply loved by the public.

In the play, Gao Yanan also trusts Guan Hongyu very much and always believes that he is innocent. ?

Guan Hongyu's brother Guan Hongfeng is the captain of the criminal investigation detachment and wants to help his brother reverse his case. However, due to the principle of relative avoidance, Guan Hongfeng was unable to participate in the case investigation, so he left his job. Because of their "phobia of darkness", the twin brothers appeared in the police force during the day and played the role of "consultant Guan Hongfeng" at night. The two brothers have very different personalities. There are many shortcomings in the police force. They have no intention of solving many cases at the risk of being discovered. In order to find out the truth of each other's tragedy, Guan Hongyu was also innocent.