Saif Ali Khan is playing a negative role in the 'Othello' remake. "My character is named Eshwar Tyagi, nicknamed Langda Tyagi due to his limp, which only adds to the already nasty piece of work that he is. He is disappointed because his boss doesn't promote him. And he just destroys people around him. He uses them and their proximity to him to destroy them. A strong theme in this film is insecurity and jealousy which is often the very life in any society," informs Saif.