| Director | Sathyam |
|---|
The film begins with the dead body of cinema director Subbu being found lying in a suitcase under a bridge. The tough police inspector Venkat is assigned to unravel the mystery behind the death.
Venkat first interrogates advocate Valli for killing him. She confesses to him that she had found Subbu's dead body in her kitchen yesterday night and put him in a suitcase. She blames her archenemy, P. T. Arun, a film producer, for murdering him. P. T. Arun then confesses that he and his assistant Kannan attempted to kill Valli by poisoning her milk but failed. According to the forensic report, the fingerprints of the three suspects didn't match the fingerprints taken on the body. Venkat then arrests a funeral dancer who fought with Subbu in a public place and a dumb pickpocket, but soon, he realizes that they are innocents. His investigation leads to Subbu's wife, Mohini, and she reveals everything.
Subbu was a lofty film director who struggled to deliver a hit film; he was known for being short-tempered and getting into trouble easily. With his entire focus centered on his profession, he failed to care for his sexually frustrated wife, Mohini. When the college student Vinoth entered his house for the stay, Sona and Vinoth became closer, thus having an illegal affair. When Subbu learned of the affair, he was devastated and left the house.
Later, an eyewitness admits that he has seen Subbu fighting with Nizam Ali the night of the murder. When the police chase him, Nizam Ali dies in a motorbike accident. The lack of further clues means the murder investigation ended, and the murder case remains unsolved.