A volunteer class trip to the South Pacific quickly turns into a nightmare when Asta, her two best friends, and ten other classmates all crash land on a seemingly normal island.
But the island is more than it appears. The beach they find themselves on is devoid of both plane wreckage and any other passengers, dead or alive, but that doesn't mean the classmates are alone. Keiran is a dangerous inhabitant of the island who claims to possess magical powers. The Director owns the island and wants to play a game with the newly stranded castaways, pitting them against each other for survival.
One by one, Asta's classmates begin to mysteriously disappear. In ominous dreams after each disappearance, secrets about each one of them are revealed, but Asta cannot figure out how this is supposed to help her save herself and the classmates she's only just beginning to understand.
As she desperately tries to decide who to trust and how to stay alive, Asta finds out there are only a few ways off the island.
And they all require death.