One October morning, Laina gets the news that her brother has been shot and killed by Boston cops. But what looks like a case of police brutality soon reveals something much stranger. Monsters are real. And they want everyone to know it. As creatures from myth and legend come out of the shadows, seeking safety through visibility, their emergence sets off a chain of seemingly unrelated events. Meanwhile, more people start disappearing, suicides and hate crimes increase, and protests erupt globally, both for and against the monsters.