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.
The film which is based on the life on an Indian scientist Shivkar Bapuji Talpade, who is credited to have constructed India's first unmanned plane is the tale of the hardships that he went through on the journey to discover. Also the film is set in the pre-independence era of Bombay of 1895.
The elderly caretaker of a remote morgue possesses an impeccable memory for everything but names. He passes his days showing corpses to those searching for their lost ones and tending to his beloved plants. When protest in a nearby city breaks out and the militia covertly raid the morgue to hide civilian casualties, he discovers the body of an unknown young woman. Evoking memories of personal loss, he embarks on a magical odyssey to give her a proper burial with the help of a mystic gravedigger who collects stories of the dead, an old woman searching for her long-lost daughter, and a hearse driver tormented by his past.