Cora Zeng is a crime scene cleaner, washing away the remains of brutal murders and suicides. But none of that seems so terrible when she's already witnessed the most horrific thing possible: her sister, Delilah, being pushed in front of a train. Before fleeing the scene, the murderer shouted two words: bat eater. Ever since, Cora can't be sure what's real and what's in her head. But she can't ignore the dread in her stomach as she keeps finding bat carcasses at crime scenes or the fact that all her recent cleanups have been the bodies of East Asian women. As Cora will soon learn, you can't just ignore hungry ghosts.