Unni, who his family thinks is an NRI, is actually a smuggler known as Walayar Paramasivam. Problems arise when his finance finds out his identity and his brother becomes a police officer who is in pursuit of Paramasivam.
Satyapratapan (Mammootty) and Kuruvila (Innocent) are chronic bachelors. Sp's sister Sandhya lives as a paying guest in their neighbourhood. Problems begin when Mukesh and Harishree Ashokan join Mammootty and Rambha joins Sandhya.
The love affair between an orphan and an auto-rickshaw driver is opposed by the girl's grandmother but supported by her grandfather. A romantic comedy played against a back-drop depicting the daily grind of life as a cabbie.
Chanthu posts fake love letters to an imaginary girl Vasumathi, so that his landlord's daughter Indira who is in love with him won't pursue him. Things go awry when a real Vasumathi receives the letters and start looking for Chanthu