The story of "Being Cyrus " of a retired sculptor Dinshaw (Naseeruddin Shah) heads the family. Other members of the joint family comprise of Dinshaw's wife Katy (Dimple Kapadia), brother Farokh (Boman Irani), sister-in-law Tina (Simone Singh) and second brother Fardoonjee (Honey Chhaya). Then arrives Cyrus (Saif Ali Khan) at the Sethna house and stays on. As the movie proceeds it gains a psychological insight into the family and reveals that everything is not all right with the Sethna family. Not just that, even Cyrus comes across as a bizarre personality.