该剧改编自崔熙善创作的同名网络漫画，一场事故让六个人的人生错综交织，在这则有关因果与犯罪的惊悚故事里，每个人都得面对各自的黑暗现实与人际纠葛。
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.
