[In Shanghai during the Republic of China, a female forensic doctor who returned from China used "bones" to understand the secrets behind murder cases]
As soon as Zhu Xuenong set foot on the beach in Shanghai, which she had been away from for a long time, she was thrust into a shocking murder case - the five members of the Song family were hung under a crystal lamp, their bodies were covered with colorful butterfly specimens, and their deaths were forcibly "artistic" by the murderer.
As a female forensic doctor who returned from the West, she used her unique "skeletal measurement method" to challenge the traditional understanding of the patrol room: Is the murderer actually a thin "strong man"? What is the connection between the amber hairpin left at the scene and the sensational collective disappearance of Jinling Girls' Middle School ten years ago?
When the gentle cryptographer Gu Xizhou joins the investigation, the code between the butterfly and the skeleton is gradually revealed, and the prelude to a revenge that has been planned for ten years is unfolding.
Bones don't lie, the truth is hidden in those twisted joints and incomplete memories - this is not a simple murder case, but a story of blood and tears that has been sealed for a long time.