P. K. is a movie based on a stranger in the city, who asks some interesting questions that no one has asked before. His innocent behaviour and child-like questions bring about catastrophic reactions. People are forced to reappraise their world when they see it from the curious eyes of PK. In his journey, PK makes some true friends and ruthless foes. He ends up mending broken lives and angering the establishment. The film is a unique tale of love, laughter and letting-go.