Ling Shu, the former archivist of the Polling Bureau, was recalled to the reorganized Bureau of Investigation because he had "Tongyin Marks" and could sense evil spirits. In the first case "The Haunted House on Rouge Lane", she discovered that the deceased were all related to the missing fragments of the "Suppressing Seal". Teaming up with Qi Qiu, the technical director, and Cang Zhu, a descendant of the seal keeper, from the strange last words of the corpse exorcist in western Hunan to the centuries-old reincarnation curse of the ghost ship in the South China Sea, they gradually uncovered the conspiracy of the "Breaking Alliance" behind the scenes - an attempt to collect all the evil seals to open the rift in the netherworld. When Lingshu discovers that the Tongyin pattern is actually the mark of the first-generation seal keeper, and Cangzhu is actually involved with the Breaking Boundary Alliance, trust and truth are crumbling in the bloody mist.
