In the Northeast region, sexual assault cases occur frequently, but the criminals are never caught, and no one can even see their true faces. Public security captain Li Zhanshan (played by Ban Zan) has little knowledge of criminal investigation and only has a passion for solving cases. He has a deep hatred for evil deeds. When he met Cai Bin (played by Li Bin), a traditional Chinese medicine professor who was sent under labor reform and demotion
In the Northeast region, sexual assault cases occur frequently, but the criminals are never caught, and no one can even see their true faces. Public security captain Li Zhanshan (played by Ban Zan) has little knowledge of criminal investigation and only has a passion for solving cases. He has a deep hatred for evil deeds. When he met Cai Bin (played by Li Bin), a traditional Chinese medicine professor who was sent under labor reform and demotion