Mammootty is David John Kottarathil, a rich unrestrained planter, known popularly by the fancy name D K. He spends most of his time boozing in the company of his friends in the Cosmo Club, in which he is the care taker and the secretary. He has got a little of tragic stories behind him as his father John accidentally kills Eappachayan, the father of his lady love and is on jail for life. This episode on their engagement day forced D K to stay back from marrying Sara Eapen, a college lecturer, even after 10 years from the incident.
David always roam around enjoying life with his driver Sukumaran (Kalabhavan Mani) and is always their to solve the problems of the club. The story takes a turn when Annie (Mukta) a medical student and Sara's half sister who is taken cared by David, is accused by the police for committing the murder of Benny, an upcoming politician and the son of political king and former Revenue Minister M C Paul (Vijayraghavan) . With supportive evidences and witnesses, Police is all the way around to seize the girl who is said to have taken revenge and killed the future prospects of Malankara Congress, for having ditched one of her best friend who committed suicide following Benny's rejection!
The only way out for D K is now to find out and bring in the original culprits before the public and the law. And in the way, he is also to expose the family leadership pattern that is inherent in many parties including Malankara Congress and the police- politician nexus that is threatening the state.