R.K doubts R.K. Selvamani who's a terrorist. But after a while it gets clear that it wasn't the terrorist. Hence, R.K focuses on the rest of the passengers in the coupe and he uncovers a lot of information in the investigation. Who is this criminal? What is he doing it for? Vaigai Express answers the question.
R.K fits in perfectly as the daredevil special officer. Be it the scenes where he twists his brain to figure out the culprit or the scenes where he uses his brawn and thrashes the wrong-doers, R.K does a good job with it. Neethu Chandra travels the entire length of the film along with our hero. The twists she reveals too are a pleasure to watch. Nasser, as a fellow police officer brings the much needed humour in an otherwise serious flick.
Suman, Iniya, John Vijay, M.S. Bhaskar, Suja Varunee, R.K. Selvamani and many more are a part of this much adorned cast list. But they all are given enough screen space and they add more strength to the script. The movie scores with the thrilling, edge-of-the-seat scenes and the twists are interesting to watch. Director Shaji Kailas deserves praises for that.
Sanjeev Shankar's cinematography is a pillar of support for the flick as he had to capture scenes predominantly in a closed environment, that of a train. Thaman's music helps in setting the pace for the film. The dialogues too play a major role in the film's success.
Overall, Vaigai Express is a ride that won't tire you.