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.

Coming from the streets of Paharganj, the movie depicts a woman's search for her lost love, a man's attempt to regain his lost enigma and dealing with his brother's untimely death, an unexpected political murder, and raging gang war.

Inside the Canadian diplomatic compound in New Delhi, a mischievous cook affects the lives of her employers and fellow staff.