Yeh Jawaani Hai Deewani is the story of four characters, Bunny (Ranbir Kapoor), Naina (Deepika Padukone), Aditi (Kalki Koechlin) and Avi (Aditya Roy Kapur) at two separate but defining times in their lives; First, when they are just out of college and standing on the crossroads of multiple decisions that will shape who and what they will become... and then later on, in their late twenties when they reunite at the wedding of the first of their bunch, now holding on to certain fulfilled and certain unfulfilled dreams, at a crossroads of another nature this time... YJHD is a cocktail of all the encounters and obsessions that form the exhilarating and terrifying journey of youth... an effort to somehow capture the spirit of the lives of these four characters as they navigate life, love and their search for what truly gives their lives meaning.