A group of six men and women, former classmates who had gone their separate ways into different professions, visited a resort island in the south to enjoy a brief vacation. However, while driving, they accidentally hit an unknown creature, leading to them being detained at a mysterious facility. The same unknown organism they hit was also being held there. But then, the creature that should have been dead suddenly attacked and began devouring humans... What is the identity of this rampaging mystery lifeform? Will these six people be able to escape alive from this sealed island? The chilling panic drama begins with a shocking start!