Another feather adds to the Perfectionist Khan's rule book. Aamir Khan is preparing himself for Reema Kagti's film in which he plays a brave cop. The film also stars Rani Mukreji and Kareena Kapoor. Now, it is reported that one of the female lead in the film plays a sex worker. Aamir insisted shooting the film at an actual red light area to make the film look more real for his perfection pursuits. Co-producer Farhan Akhtar and director Reema Kagti have been trying to explain Khan that it will be quite difficult to shoot there, but they might just give in. Also Aamir Khan has been visiting psychiatrists these days. It is reported that the film deals with suicide related issues and Aamir wants an indepth knowledge about suicide-prone individuals. Phew!! Aamir seriously gets into the skin of the character he is playing. No wonder he does one film at a time.