Bizarre case: Forensic doctor Xu Qingli discovered abnormal traces when dissecting the body of a young woman, which was very similar to the method of the "Summer Killer" case that was unsolved three years ago, but official records show that the murderer has already been arrested.
There are many doubts: Xu Qingli found that the DNA in the deceased's fingernails did not match the officially recorded murderer, and the butterfly tattoo on the deceased's wrist was exactly the same as the victim in the same position three years ago. This detail has never been made public.
Shadow of the Past: The investigation brings Xu Qingli back to the summer that changed her life three years ago, when she participated in the "Summer Killer" case as a trainee forensic scientist and clashed with the police because she insisted on her professional judgment.
Re-investigation: Xu Qingli formed a temporary partner with the criminal police captain Song Jin and began to secretly re-investigate the case, discovering that the "murderer" who was convicted that year might just be a scapegoat.
Danger is approaching: As the investigation deepens, Xu Qingli receives anonymous threatening messages and realizes that the real "Summer Killer" is still at large and may have targeted her.
This writing part mainly revolves around Xu Qingli's discovery of the connection between the new case and the old case, and her initial contact with Song Jin. It focuses on describing the details of the forensic work and the protagonist's inner struggle.
Purpose: If you want to fight, fight for the first place