This fast-paced action thriller revolves around Kenny (Vikram), a blind pianist, who plays in a church choir. Secretly, he is on a vendetta mission in London, which has been ravaged by a series of bomb blasts. During the night, Kenny becomes an obsessed killing machine and goes on a killing spree murdering mostly white men.
In flashback, it is revealed that Kenny is actually a top RAW officer Sivakumar whose friend Sarath (Jagapathy Babu) is also his colleague in the intelligence department. Siva marries Meenakshi (Anushka) an ophthalmologist and was leading a peaceful life till fate intervened cruelly and turned his life upside down.