Suyambulingam is a honest and hard working cable operator living happily with his wife Rani and two daughters in a small town named Papanasam in Tirunelveli District, Southern Tamil Nadu. He is a guy who dropped out in 4th grade but gets knowledge from "cinema" as he is a cinema fanatic. His elder daughter Selvi goes for a camp where Varun, the spoiled son of IG Geetha Prabhakar records a video of Selvi changing her clothes. When he threatens her with the video, she ends up killing him. When Suyambulingam learns of this accident, he tells his whole family to check everything at the scene of the crime. There Selvi finds Varun's car keys, his phone, and sim card. The very same day Suyambulingam takes the car and drives it to Tenkasi where he puts the sim card with another phone and throws it into a lorry. Then he dumps the car into a huge pond. Suyambulingam tells his whole family that they are going to attend a prayer and spend the next two days in Tenkasi. Then suddenly someone finds Varun's car, and Geetha is shocked. She tells the Papanasam police to first deal with it. One police constable (Suyambulingam's nemesis) said that Suyambulingam had driven the vehicle but there is no evidence for that. When they question the family he tells him to say that Varun never came to their house and that they were in Tenkasi. The police believe and then Geetha asks them to come in person. There the whole family led by Suyambulingam tell them what they did on that day and the police are shocked. Then they ask the people they met and still they say the same thing. Then Geetha finds out that on August 2 and 3 Suyambulingam went alone to Tenkasi and stole bills to claim that they were there, even though the family actually went on the 4 and 5 August. For the hotel he signed in August 2 and put a fake name on the 4th. With Geetha fed up, they arrest the whole family and take them to their headquarters. There she told them that if they didn't speak then the will attack. Even though the lie Geetha tells the police constable to attack the family that even broke their bones. Then they separate the family from Meena, who is later almost killed but stopped by Geetha, saying that she must take them to the place where they buried Varun. At the place with many people watching, they dig up a dead cow.When all the police officers stood shocked suyambulingam rushed to the press people and journalists and explain to them the brutalities done by the police to him and his family. The mob turn against the police and Perumal had to run for his life. The case attracts media attention and Court ends up in the verdict that was not guilty and will receive high protection. The aftermath of the incident was a nightmare to all those police officers who were involved in the case. Perumal was suspended with immediate effects. SI was transferred and IG Geetha Prabhakar was asked to go on forced leave by the Government. Few days later Geetha Prabhakar resigns her profession. She along with her husband send policemen to Suyambulingam's house.They inform him that she wanted to meet him.The police take Suyambulingam to the pond he met Varun's parents and upon their questions regarding their son's return Suyambulingam tells them that his family had sent him back and that too in the manner such that he don't return to them anymore thereby indirectly informing them that he is killed.. He also confesses that it was an accident. Dejected IG and her husband migrate to America with a heavy heart. As the movie returns to the present it is revealed that they will never find the body, because it is buried underneath the new Papanasam police station.