The film is about an assistant director, Udayabhanu (Mohanlal), struggling to make a mark as a writer-director. Sreenivasan plays Rajappan Thengamoodu, a struggling actor, who steals and sells Udayan's script to a top producer on condition that he will play the hero.
Rajappan becomes superstar Saroj Kumar on the strength of Udayan's story. The scriptwriter, on the other hand, is shattered.
The dim-witted Saroj Kumar, aided by his manager Phachallam Bhasi (Jagathy Sreekumar), manipulates others to sustain his stardom. Ironically, Udayan gets his first break on the condition that Saroj Kumar will be the film's hero.