While traveling in Thailand, a tour group of 19 people accidentally entered a city surrounded by mountains. The entire city had all the facilities available, but there was no one there!
Unable to contact the outside world, the only escape route was blocked, and the desire for life drove them to seek a breakout...
However, in the process, weird events happened one after another. People in the tour group continued to die mysteriously. The shadow of death shrouded them. People began to have their own secrets and doubt each other. Is the murderer an invisible enemy, a real demon, or a Trojan horse lurking among them?
Since death is inevitable, why die? Who to die for? Destiny? Sin? Or a secret?
What will be the fate of the tour group? Who will be the next victim? Why is the city empty?
Countless huge mysteries are intertwined and cannot be solved until the last moment.
