‘Nautilus,’ a scuba diving club of Hankook University, plans to have a trip to the ‘Baek Island,’ a famous island for scuba diving.
However, they end up to a shipwreck on their way to the island.
Members decide to help the survivors by towing the damaged ship to the closest island.
After spending a night at an abandoned island, members start to realize that they got into the worst situation they could ever possibly confront…

[From Steam]