The film is a story about two couples - each with their own struggle to survive, both as a couple and as individuals. After living in London for some few years, Rahul, an architect and his wife, Nandita, have recently moved back to Kolkata and become friends with Amit, a work-obsessed real-estate developer, and his bright, effervescent wife, Preeti. The closeness of this foursome works as a see-saw that creates a resonance, a chord that echoes through their present and future.