Amir, while maintaining a cover as a Livery cab driver, works as a hitman for the enigmatic criminal mastermind known as "The Voice." Under "the Voice's" employ, Amir kills at least five of his former associates, but realizes that "the Voice" will eventually see him as a loose end as well and kill him too. After doing some digging, Amir discovers that "the Voice" hires people through three different shell companies with the same PO box. By following the courier, Amir is able to discover "the Voice's" true identity, something he feels he might need someday.