Erasure is an ancient technique that came from black magic. Nowadays, few people believe in this - and certainly not the investigator Oh Chaedo, who is leading the case of the disappearance of the girl So Hayun. An experienced police officer knows that “erasers” are pretended to be ordinary charlatans who want to increase their value. Is it possible for them to truly “erase” a person from the world? And who needs these children's fairy tales if Kang Chiu, the young man with whom So Hayun broke up six months before her disappearance, is clearly evading answers. Of course, he is a popular writer and knows how to speak beautifully, but he’s not very upset about her disappearance. Will the investigator find the girl if everything in this strange case is not what it seems? And maybe, sometimes, in very rare cases, children's fairy tales do not lie...