Mumbai's lunchbox delivery system transports thousands of meals everyday from kitchens to offices. Just, one in a million lunchboxes is ever delivered to the wrong address. This is the story of that one lunchbox.

Ila is a neglected housewife, attempts to spice up her marriage by preparing a special lunch for her husband. When it is accidentally delivered to Saajan, a lonely widower on the brink of retirement, they exchange notes to get to the bottom of the mistaken delivery. These notes gradually evolve into a series of intimate confessions: loneliness, memories, regrets, fears, small joys - no topic is taboo for the new friends. Still strangers physically, Ila and Saajan become swept up in a relationship built on the fantasy of their letters. Could this be their second chance?