Archaeologist Ji Wanqiu receives half of a bronze token linked to her father's disappearance, forcing her to venture into the uninhabited wilderness of Yunnan alongside Qin Yue, a retired special forces soldier whose identity is shrouded in mystery. As the rainforest swallows the last trace of their signal, the human heart proves more deadly than any venomous snake. Every skeleton tells the same story: There is no eternal life in the Hall of Longevity, only an eternal curse.