A corrupt assistant of an equally corrupt mayor murders his boss and hides the body in a freezer. He finds a look-alike and forces him to pretend to be the mayor. The young man has a different agenda.

Appu and Raja are twin brothers who were separated soon after their birth. Years later Appu, a dwarf, has become a circus clown and is loved by everyone while Raja is a car mechanic. When Appu’s love is rejected as he is a dwarf he tries to commit suicide. His mother comforts him and reveals to him that while she was pregnant with her twins their father Sethupathy was killed by four criminals Francis, Dharmaraj, Nallasivam and Satyamoorthy and also poisoned her which is the reason he turned a dwarf. Appu now decides to take revenge against the criminals but his lost twin brother Raja is framed for his crimes by mistake.

Manikkam loves Mythili, who only uses him to fulfil her self-interests. A writer, also named Mythili, learns of Manikkam’s sacrifices and his devotion towards his lover, and falls in love with him.

The village chairman Kalingarayan (Sakthivel) and his son Rajappa (Uday Prakash) spread terror among the villagers. Whereas Kattabomman (Sarath Kumar) is an angry man who cannot tolerate injustice. He was brought up by his grandfather (Nagesh) and his widowed mother. His family and Kalingarayan’s family are in a feud for several years. Kattabomman falls in love with Kalingarayan’s daughter Priya (Vineetha) and he gets married to her without their family’s wishes. In angry, his grandfather tells their past. What transpires later forms the crux of the story.

Shiva Raman (Prashanth), an easy-going young man, comes to London in search of a job, but he loses all of his certificates. He finds Kathiravan (Pandiarajan) wandering in London aimlessly without a job. Now, they both need jobs and money. Kathir persuades Shiva to join a bank robbery planned by Bhaskharan (Manivannan). His stammering brother Natrajan (Mayilsamy) and Aishwarya (Mumtaj), who is the former’s lover, lands them in more trouble, as the robbery ends vainly. Aishwarya informs the police about the robbery and tells that the entire plan was hatched by Bhaskar. Bhaskar hides the money before getting arrested, and the place is known only to his lawyer Vedimuthu (Vadivelu). Aishwarya fakes to be in love with Vedimuthu to find where the money is hidden.
Meanwhile, to find a safe cover, Shiva and Kathir plan to imitate Saravanan, the grandson of a rich elderly couple: Shiva Kumar (Vijayakumar) and his wife Parvathi (Srividya). They have not seen their grandchild since his birth. Shiva and Kathir end up disguising Kadhir’s body and Shiva’s voice to make up for Saravanan in front of the blind couple. Ganesh (Delhi Ganesh), who knows Kathir before, makes several attempts to expose the truth to the couple, but all fails, due to Shiva and Kadhir’s luck. All of a sudden, Anjali (Ankitha) arrives in the disguise of Saravanan’s lover. She calls on all the relatives of Shiva Kumar and Parvathi. The relatives arrive in Shiva’s absence. Finding no way out, Kathir pretends to have fainted unconscious, and he gets admitted to the hospital. Shiva comes to his rescue, and says that he is Dr. Karthikeyan, a friend of Saravanan from America….

One Advocate sends an innocent man to the gallows. The innocent man’s wife loses her sanity while his two small children are left to fend for themselves. The son grows up to be a lawyer who then beats that advocate in his own game.