Exit 8

A man who gets trapped in a never-ending subway station is determined to find Exit 8. The rules of his search are simple: he mustn’t overlook anything out of the ordinary. If he discovers any anomaly, he has to turn back immediately. But if he doesn't, he has to keep going. Any slip-up will send him back to the beginning. A film adaptation of the worldwide hit video game of the same name created by Kotake Create.