I know the rating says 4/5, but I would give it a 4.5 if there was an option to do so. The story, acting, lines, directing and all the other work put into it were great, and there were almost no cheesy lines. But the it lost a 0.5 from me because the character of Shikha had barely any significance in the storyline. The only thing that was notable about her was that one dialogeu where she told Sam that he should wear a seatbelt. No hate to Reba John by the way, her acting was good, but I'm just saying that the difference that could be seen in the story without her will be unnoticable compared to the story with Shikha.
This movie would take a bit of brains to grasp because of some the unsaid and implied things. I watched the movie with my parents, and they're pretty big movie junkies, but the final life story of the killer was a bit hard for them to get, and I ended up explaining it to them later. Overall, it's a pretty good watch, but i wouldnt say it's a 'must-watch'.