The movie revolves around Nandu (Vineeth Sreenivasan) and Maaran (Chemban Vinod Jose), the two criminals who travelfrom Kannur to Trivandrum, in the second class compartment of Parashuram Express. They are accompanied by two police constables, Jolly Kurian (Joju George) and Balagopal (Sreejith Ravi).
Nandu is a calm and quiet young man who hails from a village of North Kerala. His family consists of his parents (Nedumudi Venu and Vanitha Krishnachandran) and an elder sister (Nikki Galrani). Maaran, who hails from a Tamil colony of Kochi is highly restless.
Jolly and Balagopal, the policemen, are not in a good terms since their training days. Jolly is a wicked hearted man while Balagopal is a complete gentleman. The journey of the foursome and the incidents faced by them forms the crux of the story.