This series focuses on the criminal investigation legend of "Chinese Detective" Li Changyu for more than 40 years. It selects global classic unsolved cases such as the wood chipper murder case, the Simpson case, and the Kennedy assassination re-investigation. With scientific forensics as the core, it restores his entire process of stripping away cocoons from trace physical evidence and letting the evidence speak for itself. The program combines on-site investigation, experimental restoration and court games to reveal shocking techniques such as "conviction without a corpse" and "dismantling of the evidence chain". It not only displays the logic of hard-core criminal investigation, but also conveys judicial justice and humanistic care, allowing the audience to understand the key breakthroughs in the history of world criminal investigation and feel the power of science and justice.
