This film is extremely simple. 2 men who have a rivalry are forced to stay at a house along with 2 people that have no idea about this rivalry. At the end one of the men is killed and the other walks off into the distance. There only like a few characters in the movie: balan played by Mohanlal, raju played by salim ghose, kochooti played by sumalatha, and nanu played by sankaradi. I watched this film months ago so I am astounded by me remembering them. And that wouldn't have happened if all the main performances werent perfect. The script by mt vasudevan nair is amazing, except for one sentence that completely ruins the immersion. The film also doesnt tell us a lot of the world outside of the thazhvaram, or the valley where the main characters live, making this film timeless and applicable anywhere. There is also another flaw that mohanlal's fiancee looks like a teenager which also doesnt make much sense. Overall a great and simple film that is one of the classics for its near perfection.