KC, a genius tech entrepreneur and the creator of Minetell, the general-purpose artificial intelligence that powers a virtual city of 500 million citizens, receives a terminal cancer diagnosis. Ignoring the pleas of his wife Minju and the recommendations of his doctors, he retreats into his laboratory. He is determined to create a higher-level AI—one that surpasses every previous iteration of Minetell.
Six years after his death, Minju has remarried a man named Junmo, yet remains in the home she once shared with KC, honoring her late husband's final request. Then, strange occurrences begin to disturb their lives. The light in KC’s study flickers on and stays lit throughout the night. Pizza she never ordered arrives at the doorstep. And in the stillness of the darkened house, Minju begins to feel the presence of something—or someone—breathing, watching.
What is the true nature of this lingering presence? Is it a haunting echo of the past, or something far more intelligent—and alive?