Deacon Choi and Father Kim visit Youngshin who is in a vegetative state. Their plan is to exorcise the demon that has settled into her body. The demon, however, is a formidable force and Youngshin shows no sign of improvement despite Father Kim and Deacon Choi's efforts. The demon actually grows stronger by attacking Deacon Choi's weak mind for this is his first time here.
Choi is 'the 12th assistant deacon' to Father Kim, proof that the demon that has taken over Youngshin's body is a formidable one. The demon feeds off the fear that human beings harbor and this connection demonstrates the vices of Korean society.
Youngshin seems to have attempted suicide because of the pressure of the college entrance exam while Deacon Choi still suffers from the agony of having been beaten while serving in the military. Korean society, which does not take care of its individuals, provides a favorable environment for demons to run rampant. Therefore, the activities of those who strive to fight against them are essentially lonely. This is what makes 12th Assistant Deacon fundamentally different from The Exorcist, which it seems to resemble on the surface. (Huh Namwoong)

讲述了一个掌握决定囚犯是否假释的巨大权力的男人以自己的方式执行正义的故事。

一个严格的主管来到这名充满热情的研究人员的土豆实验室，证明了爱情可以在最出人意料的地方萌芽，也让她的生活随之发生转变。

该剧讲述充满正义，但社会生活生疏的新进律师，透过冷漠但实力坚强的合伙人律师，成为一名完整的律师。

较晚入伍的军人载允与等待他退伍的社会新人女友英珠，因无法克服两人环境差异导致误会加深，在最后一次通电话时决定分手。然而，在载允与英珠分手那天，丧尸病毒颠覆了世界。国家宣布进入紧急状态，一架飞机在市中心坠毁，载允和部队员们则因丧尸群而被困在位于首尔中心高楼楼顶的防空部队。英珠为了见到载允，跑到了丧尸横行的街头上。两人的恋爱能否安然圆满？