Nine Hours, Nine Persons, Nine Doors

From somewhere far off, Junpei catches the sound of metal squealing, and his stomach tightens — of the thousand things it could be, none of them seem good. Trying to steady himself, he scans the room once more, and his eyes land on a slightly grimy iron door set into the wall before him. The first thing he notices is the number scrawled roughly across it: there, daubed in red paint, someone has written a 5. So begins a desperate game, as nine strangers find themselves trapped and forced to survive a deadly contest of locked doors and cryptic numbers.