Under the deep sea, a red alert broke out in the 5,000-meter-high "Summer" laboratory and was blocked. Researcher Tong Xu and his team are in a desperate situation. Faced with the crisis of invasion and annihilation, only a strange glimmer of hope remains in the refrigerator.
She is a "black house" of unknown origin, the redundant fifth person in the group. Her arms covered with pinholes and her abnormally calm eyes hide secrets that no one knows about.
The cold refrigerator did not become her grave, but instead became the entrance to a wider cage. The next second, they were thrown together into an infinite copy world full of strange beasts and full of crises.
Here, the copy is the hunting ground, and every step is a life and death competition.
Intention: Empty your brain