They can't be caught. They're elusive, uncontrollable, and purely insane. Each one has their own quirks, gimmicks, but they're inconspicuous, until they notice you. And if they notice you, say goodbye, because you won't wake up. Sally is different than other children, the main difference being that there are nights where she places a blade in her hand, and a few people forget how to pump their blood. There are others though, and the town is doing everything humanly possible to catch them. But one night, their small world comes crashing down, and they all must evolve.