15 Park Avenue - a world where Meethi (Konkana Sen Sharma) has a perfect life...a place that does not exist in reality...or a metaphor to the elusive world of happiness we all seem to look for. The film essays a journey into the world of mentally and physically challegend Meethi her older sister Anjali (Shabana Azmi), a brillant professor of physics in a university in Calcutta. Though Meethi remains fairly functional till her twenties and is even set to get engaged to Jojo (Rahul Bose), a traumatic experience raises the dormant schizophernia in her. She now lives in a delusional world, where she, her husband Jojo and five children live a happy life at 15 Park Avenue. A few years later, in a nother chance meeting, Meethi fails to even recognize the guilt-ridden Jojo, who is now happily married. And now, she urges Jojo to set out to look for her perfect world...for 15 Park Avenue.