Mahadevan (Mukesh (actor)), Govindan Kutty (Siddique (actor)), Appukuttan (Jagadish) and Thomas Kutty (Ashokan (actor)) are four young men who live in the housing colony named 'Harihar Nagar.' The movie starts with an incident that takes place in Mumbai, where a murder takes place for the possession of a briefcase. In the next scene the four young men make appearance with their tricks to impress young girls. A girl, Maya (Geetha Vijayan), along with her grandparents relocate to Harihar Nagar and happen to be Mahadevan's new neighbors. The four try to impress her on many occasions. One day they find her posting a letter. They bribe the postman and manage to get hold of that letter. On reading the contents of the letter, they come to know that Maya has come to Harihar Nagar to learn about the death of her brother - Sethu Madhavan (Suresh Gopi).