Shen Dingdeng, the former famous Chief Examiner of the Department of Bone Rehabilitation, was burdened with the strange poison of cold marrow after an old case that wiped out his family. He changed his name and surname, and drove a mobile medical clinic called "Qing Deng Bone Rehabilitation Building" to travel around the world. He originally just wanted to survive by seeing doctors and doing autopsies, but because of a corpse hanged in a rainy night inn, he was drawn back to the "Book of Bones" thirteen years ago, which could overturn the world and the court.
