My best friend disappeared mysteriously, an encrypted email, and a strange apartment key completely dragged me into the abyss.
Welcome to "Guanhu Apartment", a forbidden place where ghost stories and reality intersect. The only way to survive is to crack and abide by the invisible [rules].
[Rule 1: Never make any noise after ten o'clock in the evening.
[Rule 2: You can ask anyone for help, but never trust the woman in red.
[Rule 3: If you hear someone singing a lullaby outside the door, please hide under the bed immediately...]
In order to find my best friend and escape from this crazy place, I must stay absolutely awake!
However, when I got closer to the truth step by step, I discovered that this small apartment was just the entrance to a whole world of horror...
