Roy (Mukesh) and Sethu(Jayaram) end up in jail as they try to rob a house. After their six months of jail term Sethu tries to start a new life, leaving behind all the wrong things he had done. But the past hits back, the certificates he used to get the job in a tea factory were of Albert aka aby ( Manoj K Jayan) who was missing and later was found dead. Albert had an affair with the daughter of Mr. Menon (M.G Soman). Isaac Thomas IPS (Sukumaran) starts investigating the murder case and he finds that Mr. Menon's lawyer had a revolver and the bullet which killed Albert was shot from his revolver. Who is the murderer? Is it Menon who wants to kill his daughter's boyfriend? Is it Sethu who killed him for the certificates? Is it Pillai (Lalu Alex) whose revolver was used to kill Albert?
