In 1999, the "7.17 Mass Disappearance Case" occurred at Luoxiashan Psychiatric Sanatorium in Yunzhou. All 127 patients and 32 medical staff in the hospital disappeared overnight, leaving only wet blood on the floor and the words "The bones are talking, but you can't hear" written in blood on the wall. Twenty-five years later, the only "orphan" in the disappearance case, female forensic doctor Lin Shen, received a handwritten letter from her mother in a closed nursing home. In order to find the truth, Lin Shen and
Four strangers, each with their own secrets, teamed up to enter a forbidden area, only to discover 100 buried truths that had already firmly bound their fates.
