There are several reasons why we loved it. In a festival selection filled with often depressingly serious films, this one managed to stand out by making its statements clearly, in a fairly brief running time, without resorting to heavy-handed tactics. It shows that with a lean-and-mean script, dedicated actors and great use of your locations, you can swing wide with your ideas and still make them land.
In Ennennum we follow Ouso and Devi, a fairly rich couple who live in a strictly governed, scientifically advanced India. Ouso's recently deceased brother David was a beloved politician, and his death happened while the nation is at an historical crossroads. Because due to a new invention, you can basically be made immortal by having a chip placed near your brain. Provided you can afford it, your personality can then be downloaded and safeguarded in case of death or danger.
Shaken by their recent loss, Ouso and Devi are considering to use the procedure for themselves, but have worries. What does immortality mean for your relationship with each other? Did you sign up for eternity when you got married? Do social safeguards between people even work when immortal? Staying together for several years is fine, but time changes everyone... As Ouso and Devi tentatively start with a three day try-out of the chips, several things happen which cause them to doubt each other, and themselves.
The technical exposition is supposed to be the boring part in films like these, but writer-director Shalini Ushadevi cleverly has all the tech-talk done by a nervous head-bobbing salesman, played by Ajithlal Sivalal. He steals scenes he's in by occasionally dropping the most heinous truth bombs about relationships, often at a bad time. And you don't get the impression he's sarcastic, which somehow makes it worse.
This film plays like a very good episode of the first seasons of Black Mirror, and I mean that as a strong recommendation. Ennennum is intelligently crafted, impressively executed, intimately focussed on its intent and doesn't underestimate its audience. It features one of the tightest scripts I've seen in some time, with great dialogues and an interesting tale to tell. As an old science fiction fan I was touched, and I felt I had learned something new. It beat my initial expectations of it and it's hard to leave a cinema more satisfied than that.