Though he is involved in illicit arrack trade, Kathavarayan (Karan) is a man with golden heart. Malathy (Vidisha), a student, comes to the village as part of her school project. She vows to end the arrack menace in the village and takes efforts to arrest Kathavarayan. Thanks to her efforts, Kathavarayan gets arrested and lodged in prison. Call it fate, Malathy is arrested for no fault of her. Her efforts to expose drug-peddlers backfires. They hatch a conspiracy and Malathy falls a prey to it. She gets arrested for possessing drugs and lands in prison. Kathavarayan comes out of jail to avenge Malathy. But comes to know her real intentions and the trouble she is facing. He masterminds a plan and joins the gang selling drugs and eventually exposes them only to save Malathy.
