Rasavathi means alchemist who can be expert with chemicals but this does not fully go with the story. No harm but the movie is very good in other means.
There are just 3 main characters in the story Hero, heroine and villain.
The villain character is very well and neatly designed from the scene 1. His character arc was shown with his life problems and his actions to solve his problems. Also his mannerisms during his mental health changes is also clearly shown and lot of symbolic representations are excellent in story making.
The heroine character was very simple and her flashback was also shown in just 5 mins which was super excellent.
Hero character plays the next vital role as his character arc was tried to be delivered in very much detail. Starting from his lifestyle and his mannerisms are very much nice. His capacity to his profession and his knowledge on medicines are neatly placed on the story. Hero's flashback is very depthful and more of his skills are shown there and in that 30 min story, I felt like why the hell is this much detailing shown. Truly that could have been trimmed and it might be bore for a lot and definitely deviating from the present plot. Once we know the hero flashback does mean good relation to the present plot, mindset of audience may change to get involved.
Other noticable characters like the psychiatrist Ramya and SI character by Sundar also gel with the story when required. Music is a real good addition to the movie. There are 2 songs and one long musical scene of hero's flashback which was great.
Director Shantakumar presented this in a very critical story telling manner where this could have either been a very dark movie from the start. Out of his 3 movies, this is my personal favourite. If the director is ready to give us these range of similar movies, I am very much ready to visit the theatres....