It's that kind of a film which evokes a greater sense of longing or love for a person purely even when we have no one beside. Before this film, I was a fan of Vijay Sethupathy and now the word "fan" doesn't does justice to the level of affection and respect i have for him. Also this is Trisha's finest movie, thus making Janu live through our minds and heart ceaselessly.
TLDR: It's not a film, it's an experience