On a sunny holiday, the sightseeing cruise ship to the "Happy Island" was shipwrecked, and only Ning Yu, Zhang Xinchen and a few survivors were washed up on an isolated island with no coordinates and no signal. Soon, they realize that this peaceful island is not a refuge, and that there is an eerie aura everywhere. Ning Yu, Ah Qiang and others went to find a water source, and in the huge stone cave, they found two dried corpses and an old red notebook. That night, Cuong's face turned pale and he muttered to himself like an evil spirit. And that red notebook is a record of the horrors that these survivors are about to face.
