In modern-day New York, Nirupama, a nuclear oncologist, is trapped in a marriage of convenience with Vishwanathan, a seemingly effeminate and clumsy Kathak dance teacher. Suspicious of his mundane life, she hires a private investigator to trail him, hoping to find grounds for divorce. However, the investigation triggers a violent chain reaction. The investigator is murdered by a cell of Al-Qaeda terrorists, revealing that Vishwanathan is not who he claims to be.
: The theatrical releases in several countries (like the UK) were edited to lower age ratings. For example, two moments of bloody violence were removed to achieve a 12A rating, though a 15-rated "uncut" version was made available. vishwaroopam uncut version
While the film received a from the Central Board of Film Certification (CBFC), it was initially banned in Tamil Nadu by the state government, citing potential law-and-order issues. To secure its release on February 7, 2013, Kamal Haasan agreed to several modifications after negotiations with Muslim civic organizations. The "cut" or censored version included: In modern-day New York, Nirupama, a nuclear oncologist,