When high school teacher Na Aejoon shows up for work on an ordinary day, he never expects to bump into his favorite celebrity in the hallway. But when his school becomes a filming location for a show starring Choi Siyeol, his bias from the idol group A-One, that's exactly what happens! If that's not enough to give a fanboy a heart attack, Siyeol takes an interest in Aejoon and asks him to join the show as his "co-teacher." Desperate to keep his fan life a secret, Aejoon is forced to put his acting skills to the test, and not just on camera. But as he spends more and more time with Siyeol, the deception becomes harder to keep up. Not to mention, he might not be the only one keeping secrets…
故事根据金容基的网络漫画《惊悚考试院》改编，以考试院为背景，描述从乡村来到首尔生活的一位少年发生的一连串奇怪的事件，而且身旁的每个人也都怪怪的……
该剧改编自同名漫画，讲述恶鬼捕猎者们伪装成面馆职员以对抗人间恶鬼，以此展开的痛快挥洒汗水的人类英雄故事。
机场安检员金禧主（朴宝英 饰）意外得到走私集团的金条，瞬间成为猎物，被迫卷入一个充斥住贪婪同背叛的黑暗世界。身边的人逐个露出真面目，互相残杀、无一幸免；而当恐惧同占有欲失控蔓延，连自己都慢慢被吞噬……
