Kullanari Koottam is disappointing, not just because it does not have an impressive storyline, but because the makers were seemingly in a hurry to finish things without going into the details, leading to a very weak narration, especially in establishing the characters and the climax. However, the film is engaging and has some stuff that evokes laughter in places.

Starring Vishnu and Ramya Nambeesan in the lead roles, Kullanari Koottam revolves around Vetri (Vishnu), an unemployed MBA graduate in Madurai, who is waiting for the right job to come his way. His life takes a different turn when he mistakenly tops up an unknown mobile number instead of his dad's phone. Realizing his mistake, Vetri tries to contact the number, belonging to a college girl Priya (Ramya Nambeesan), to recover the amount he just spent on getting her number recharged. To avoid Vetri's continuous phone calls and missed calls, Priya fixes a place to meet him and return the money. As expected, they fall in love. Priya's father, a policeman, insists that to marry his daughter, Vetri should become a policeman. This leads Vetri to attend a police test in Chennai. During the recruitment, Vetri and friends find corruption at all processes of examinations and decide to fight back! What happens next forms the rest of the film.

The first half of the film is set in Madurai backdrop, but the bloodthirsty culture that is always projected in Tamil Cinema as an inseparable part of the city is missing in the film. The first half wholly deals with the Vetri-Priya romance which is roiled without any “moments”, so when you ask why they've fallen for each other, you would have no answer. The makers should have concentrated more on developing the characters to avoid such a situation. The second half (depicting how five young men, including Vetri, take on corrupt police officials without much effort) may not be a believable assumption, but it's interesting to see them swing into action at lightning speed. The climax is too short as well. However, director Sri Balaji has managed to make Kullanari Kootam fairly engaging even without a hero who challenges the bloody-minded, pitiless villains, a comedy track that lacks continuity and amazing stunts. Concisely, Kullanari Koottam is not worst or best.