One evening in downtown Seoul, Jeong-su is smoking a cigarette outside when he sees something impossible: a huge black orb appears out of nowhere and sucks his neighbor inside. Jeong-su manages to get away, but the terrifying sphere can move through walls, so he's sure he won't be able to hide for long.

The orb soon begins consuming every person caught in its path, and no one knows how to stop it. Impervious to bullets and tanks, the orb splits and multiplies, chasing the hapless residents of Seoul out into the country and sparking a global crisis with widespread violence and looting. Jeong-su must rely on his wits as he makes the arduous journey in search of his elderly parents. But the strangest phases of this ever-expanding disaster are yet to come and Jeong-su will be forced to question everything he has taken for granted.

Dryly funny, propulsive and absurd, The Black Orb is terrifyingly prescient about the fragility of human civilization.