London in this movie Sivaraman (Prashanth) is an innocent rustic youth who lands up in the big, bad London in search of a job. He comes in contact with a small-time thief Kathir (Pandiarajan). The duo eventually ends up as part of a robbery attempt made by two others (Manivannan and Mumtaz). But as the bid is nixed, Sivaraman, who is now much more confident in life, decides to pose as the grandson of a rich but blind couple (Srividya and Vijayakumar).
Now under the name Saravanan, he enters the household along with his friend Kathir.
Then the mirth-riot starts; the old couples identify Kathir's voice as Saravanan's. All hell breaks lose because of this. Then there is Anjali (Ankitha) who is purportedly the lover of the original Saravanan. Then there is a caboodle of characters in the form of an advocate (Vadivelu), his rotund wife Baby (Nalini), the always-inebriated manager (Delhi Ganesh)… it is a house of never-ceasing fun and hilarity.
The climax is all about how all the cross connections and conned connections are set right.