A link in their pasts leads an honest cop to a fugitive gang boss, whose cryptic warning spurs the officer on a quest to save Mumbai from cataclysm.
Muthuvel Pandian, a retired, stern yet compassionate jailer lives a peaceful life with his family, but trouble knocks his door when his cop son’s tryst with an antique mafia gang goes awry and forces Muthu to step back into a dark world he had voluntarily took a break from.
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.
