A rivalry that began at birth reaches a sad, disastrous end-a murder and a suicide. Nila Surian is about two cousins who have always been foes; Nilakandan and Suriyamurthy. Their lives always entwine but matters get serious when a girl enters their lives. The sly duo’s primary motivations are themselves and everything they do is to challenge the other. This primitive mentality conjures a dangerous game of vengeance that leads them to cheat and tease one another. It affects their friendship, love life and ultimately, their persons.At the end… it is a matter of who champions the pursuit of revenge for the sake of it.