Half a year ago, a trip to Huangliang Mountain that was supposed to be relaxing and enjoyable turned into Gu Sisi's nightmare. She went there with her friends, but disappeared mysteriously without any news, leaving endless pain and anxiety to her boyfriend Meng Chaoxi.
Meng Chaoxi could not bear the pain of loss and resolutely embarked on the road to find Gu Sisi. During this search process full of unknowns, he could not refuse Jiang Zhi, who had been stalking and trying to join. He also met a girl with a similar experience - Shi Shi.
Three people whose destinies are intertwined begin to explore the truth of the disappearance together. They went deep into the hinterland of Huangliang Mountain, read materials, and interviewed local residents. Every step they took was like clearing away the fog, trying to find clues. However, as the investigation deepens, Huangliang Mountain hides a deeper secret than the disappearance itself. Ancient legends, strange phenomena, and some truths that seem to be deliberately concealed are all emerging little by little.
What follows is the danger lurking in the dark, and their search becomes perilous. Meng Chaoxi, Jiang Zhihe, in this battle with the unknown and danger, not only have to face the pain of loss, but also have to pay a heavy price for uncovering the truth. Where will the secret of Huangliang Mountain lead them?
Purpose: The truth behind the disappearance is far more complicated than imagined. Revealing the truth requires courage, persistence, and may pay a huge price.