Madhavan (Dileep), an educated youth from a small village of Idukki, comes to Kochi to stay with his brother’s family after his brother’s sudden death. His brother Sudhakaran (Ganesh Kumar) was a customs officer. He was found dead in a mysterious circumstance and Madhavan doubts that it is a cold-blooded murder. In the mean time, he befriends an insurance agent Manimeghala (Lakshmi Menon) and falls in love with her. Madhavan’s struggles to find the mystery behind his brother’s death forms the rest of the story