When the elevator door opened, I knew I couldn't go back.
The number on the back of the hand is counting down - 24 hours, if it reaches zero, you will die.
The only way to survive is to enter the "ghost room" at 12 midnight and complete the mission of resentment of the dead.
But in this building, what is more terrifying than ghosts are people:
Someone will push you out of the way to block a knife in the dark;
Someone tells you the rules with a smile and watches you violate taboos;
Someone else saw a little girl in red in the mirror and made a "shh" gesture to her.
They all said that if you want to survive, don't go to the 19th floor.
But I discovered that the 19th floor is the only exit.