Sanju is a biopic based on the life and times of controversial actor Sanjay Dutt who was born to star parents Nargis and Sunil Dutt. The film narrates his estranged relationship with his father and the phase when he became an actor and took to drugs. The film also highlights his journey to stardom and the traumatized phase when he was arrested for arms possession during the Mumbai blasts in 1993. How he fights against all odds and comes out triumph after his final jail term is also portrayed. The actor's role is reprised by Ranbir Kapoor.