Gautham(Karthik), a major in the army, is aboard a ship going from Ooty to Goa when his colleague Richard(Sriman) is murdered. The army classifies it as a suicide but Gautham is determined to find the truth. Evidence that Richard pointed him to before he died leads Gautham to uncover a conspiracy involving some higher-ups in the army itself. In his quest to find the people behind it, he is helped by Richard's sister Jennifer(Thanu Rai), who he also falls in love with, and Nandhita(Maina), a mysterious woman who may have a few secrets of her own.

The movie has atleast two things going for it. Having the army as the backdrop lends some difference to the proceedings and the story, involving murders, conspiracies and terrorism, contains all the ingredients needed to construct a good thriller, a genre Tamil cinema has few solid entries in. But the movie fails to capitalise on either of these aspects. While the army is pretty much made a mockery of, the movie's loose screenplay, illogical happenings and languid pace drain away all interest in the main story.

Setting a movie in the army requires a big budget and a competent director who can stage the scenes in a convincing manner. Indru has neither of these, leading to amateurish sequences like the opening one where Karthik rescues a couple of kidnapped army men. But the constraints in staging such sequences can make one overlook such scenes. What rankles more is the lack of reality or logic in its characterization of the armymen. While Karthik goes around wearing a variety of disguises to catch the bad men, his two assistants, who also hold high ranks, behave like clowns. Looking for comedy, the director has turned them into the usual sidekicks of Tamil movies. So we get two armymen who leer at women and don't even know what the word 'password' means!

The movie lacks the fast pace or surprising twists to hold our interest. We know the moment Devan is introduced in the first scene that he will turn out to be a bad guy. And the low number of people to cast our suspicion on makes it clear pretty early who the mole in the army is. The only character the director handles well is 'Nizhalgal' Ravi, since we never know where his loyalties lie. The sequences where Karthik and his team play the bad guys off each other also show some sparks of cleverness but the sparks die off pretty quickly.

Karthik looks old and his unsuitable, artificial wig really stands out. He lacks the aggressive nature that would have made his character interesting and his dialog delivery is terrible. Neither Thanu Rai nor Maina appear to have long careers in acting based on their performances here. Karunas makes some lame attempts at making us laugh while Sriman overacts in the little time he is given. Actors like 'Nizhalgal' Ravi, 'Pyramid' Natrajan, 'Thalaivasal' Vijay and Devan are their usual selves and are not stretched much.