Twenty One Grams is the story of the investigation which takes place following a couple of grizzly murders which take place in Kochi. The story has all the ingredients for a lip smacking serial killer film. The screenplay standing at around 133 minutes is brilliant and it really holds your attention throughout. It opens on a rather slow note which is understandable, considering the fact that you need to build a world and flesh out some purpose-driven characters. So you are introduced to the protagonist and the other characters around him and you get to know that the protagonist and his wife is grief-stricken while he carries on his duties of investigating the murders in his city.

I really enjoyed how the writers were able to co-relate two completely separate events and weave them in the narrative. The drama unfolds in a non linear manner as it oscillates between two timelines at the very beginning. You may feel slightly sluggish to begin with but soon you are sucked into the drama so much so that you start playing the guessing game yourself! The terrific opening sequences completes a full circle at the halfway mark which is truly nail biting stuff!

There are various twists and turns which will keep you invested. Being a cinephile and my experience with serial killer films, I was able to decipher the killer well before the end. But this puzzle is not easy to solve and I am pretty sure that the audience would play the guessing all along. The moment you think you may have cracked the case, a twist is thrown in and promptly so! The final revelation is at the very last minute in a brilliantly constructed final act. The issue or the reasoning given is also quite valid and relevant, summing up a screenplay which is brilliantly penned!