After missing her University graduation, Chloe Ling falls back to obsessing about the final stage of ‘Island Fall’, a first-person shooter that launches players into an immersive open-world game. But when the game inexplicably glitches, Chloe witnesses a non-playable AI materialise in the real world. Convinced she is going crazy, Chloe seeks help from a childhood friend from her past, Jake Lai, creator of Island Fall.

Upon being confronted by The Cure, Island Fall's final boss, Chloe wakes up in the game world and discovers three mysterious symbols branded upon her skin. Chloe, Meredith, and their new NPC ally “Alpha”, try to decipher its meaning. But as The Cure's powers grow, Chloe realises that Jake and her gaming friends are in mortal danger.

With her mind in the game and her body missing, Chloe finds herself imprisoned in the Cure's simulations that toy with her deepest desires. Meanwhile, Meredith, Jake and Alpha attempt to locate Chloe's body. But with time running out, Chloe is forced to come to terms with the painful truth about her mother's death, leaving one last devastating revelation.

As Singaporeans collapse from a mysterious neurological disease, Chloe and her friends must plan their assault to destroy Deep-Lace and Island Fall for good. But with the fate of a nation resting upon their lack of real-world fighting skills, Chloe faces an agonising truth: She's leading her friends on a suicide mission. And if she loses this game, her existence, as well as thousands of lives, will be lost forever.