金敏智，一个“当代”的上班族，从小就和父母分开，和妹妹智妍一起生活。有一天，她工作的公司突然破产，一夜之间失业。更糟糕的是，自称来自朝鲜的学者元太出现在金敏智面前，并住在同一所房子里……

SYNOPSISKang-Tae, who is a patient of abnormal sexuality and escaped from the mental institute, rapes a woman and kills her at night. The third victim is a daughter of Park Jun-Keol, a head of the criminal investigation team. She has a narrow escape from him and cooperates in investigating by the persuasion of Detectiv…