McNight, who works as a courier in New York, One day, he accepts delivery with a large income.He carried an iron box and headed to his destination, the investment company ‘Everway’...Entering the building, people who inhale poison gas begin to turn into lunatics...Experience Campaign modes!Play the campaign mode, which consists of a total of 4 Chapters. How can 'Mac Knight' survive?Shape your destiny!Ensure your survival at all costs!Remain vigilant and keep an eye on your surroundings. Your survival is paramount.