Om Shanti Om is a romantic action comedy-drama where Om (Shah Rukh Khan) is a junior artiste working in films and is a big fan of superstar actress Shanti (Deepika Padukone). Om secretly loves Shanti but Shanti loves film producer Mukesh Mehra (Arjun Rampal). To get rid of Shanti, Mukesh kills her and flees abroad while Om too dies along with Shanti. Om is reincarnated as a big film star and tries to recollect his previous birth. He meets a lookalike of Shanti and etches out a plan to settle scores with Mukesh Mehra.