Aamir tells the story about an Indian(muslim) doctor who lands at Mumbai airport to find that his family has been kidnapped and he's got involved in a radical conspiracy by an extremist group due to his religion.
Aamir travels through the narrow ,dirty lanes of Mumbai obeying the instructions of the head of the extemist group to save his family,without having any knowledge about the mission he is undertaking for the extremist group.
By the time he realizes what his real mission is about ,it becomes unavoidable eventually leading to nailbiting climax.
The cinematography is superb(it also helps that the film has been shot at real locations).
Another plus point is its music which is enchanting specially the song RAHAM.There are no item songs or romantic angles which helps in keeping the film undiluted.
The problem with the film is ,we don't understand finally why Aamir has been choosen over the other really efficient members of the extremist group to perform the task. The film also drags a little towards the end.It deals with the problems of muslims which has already been discussed in a lot of films.
Rajeev Khandelwal is superb throughout the film.His performance is vulnerable and subdued which makes the film realistic.
I would rate the film 8 out of 10. Go watch it.