Sid Mehra (Ranbir Kapoor) is a young man living in Mumbai who benefits from the indulgence of his parents. After graduating from university, he makes a stab at working in his father's business, but lasts only a week. He then meets Aisha (Konkona Sen Sharma), an aspiring writer from Calcutta. Sid helps her get settled in the city and then wants to take things further -- but Aisha isn't interested because of Sid's slacker personality. Will her rejection serve as a wake-up call for Sid?