yang bixin (played by hui yinghong) suffered from schizophrenia and almost poisoned her son ye jinfeng (played by wang haoxin) aaa。 ye jinfeng was too scared and dissociated from his weak but heartwarming personality - zhu ji. ye jinfeng, who has a dual personality, was appreciated by nie shan (played by jiang haowen), the father of criminal investigation, and was recruited to join the special case team. he fought against various psychological biases with psychiatrist wei ruijie (played by yuan weihao), bomb disposal policeman hua youyanxing (played by huang zhiwen), inspector jiang zhengxun (played by li noyi), forensic anthropologist fang wanqian (played by wang minyi), forensic insect expert zhang xiaoman (played by lian shiya), and novel editor hai lan (played by ju ziqiao), who is often suspected of being related to the case and needs to be investigated, and has been cracked for many thrilling cases.