Rule 8: Never Believe the Writing on the Wall

Eight people participate in a million-dollar escape room survival challenge, with seven rules written on the wall. Keep quiet. Don't look in the mirror after midnight. Don't go underground alone… But at the bottom of the rules, someone filled in blood the eighth rule: Never believe what's written on the wall. When the people who followed the rules disappeared one by one, and those who broke the rules became unlike themselves, I realized - this is not a game, but an experiment that has lasted for fifty years. The eighth one is the only way to survive and the deepest trap.