Two friends are searching for their long lost companion. They revisit their college days and recall the memories of their friend who inspired them to think differently, even as the rest of the world called them "idiots".
A clash between Sultan (a Qureishi dacoit chief) and Shahid Khan (a Pathan who impersonates him) leads to the expulsion of Khan from Wasseypur, and ignites a deadly blood feud spanning three generations.
A stranger in the city asks questions no one has asked before. Known only by his initials, P.K.'s innocent questions and childlike curiosity will take him on a journey of love, laughter and letting go.