热血铁三角原班人马事隔5年回归，天主教司祭金海日（金南佶 饰）、检察官朴京善（李荷妮 饰）和刑警具大荣（金成畇 饰）联手打击恶势力！ 一场追思会泄露了地下贩毒集团的秘密，金海日决定同拍档一齐去釜山，伪装成神学院教师，展开调查。
以现代日本女性感受到的“生活难”与“焦躁感”，还要面对“什么是生活？、什么是人生的幸福？”为主题，描述4位神秘色彩女性的惊险而浪漫的故事。
A down and out cop lands the case of a lifetime when four suspects are nabbed in the assassination attempt of a prime time journalist. The case turns out to be a devious maze where nothing is what it looks like. The pursuit of it leads him to the dark netherworld - the 'Paatal Lok', and to shocking discoveries in the past of the four suspects.
