Lonely housewife Ila (Nimrat Kaur) decides to try adding some spice to her stale marriage by preparing a special lunch for her neglectful husband. Unfortunately, the delivery goes astray and winds up in the hands of Saajan (Irrfan Khan), an irritable widower. Curious about her husband's lack of response, Ila adds a note to the next day's lunchbox, and thus begins an unusual friendship in which Saajan and Ila can talk about their joys and sorrows without ever meeting in person.