Nawazuddin siddique has done a very nice acting in this movie as a serial killer. I am very impressed by his acting skill. This is a film which is full of negetivity, but instead of that it teaches us badness is not in our society or any other person but it is in ourselves occures very deeply in our brains. Every individual has a raman and raghav in himself. At the end of the story, when raman surrenders he also find his partner raghav as his partner.