Straight to the point:
The script is good however characters played by the actors is not satisfactory. Radhika apte's role is too big a role for her and she doesn't seem to justify her role. She looks ineffective.
Other actors are also below average in this series. While Saif has done justice to the role given to him, but his character as incompetent cop does not challenge or excite me much. And going to and fro (not being systematic) in the stories is somewhat confusing and distracts our attention.
The movie is also too slow with many unnecessary dialogues and scenes.
How did it even get high ranking at imbd?