Two strangers pretend to be husband and wife in order to use a pre-reserved ticket bought from a scalper to get on a train , because of last second plans ,find that their lives intersect and later fall in love.
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.
Jayaram (Sidharthan) is a person who had always wanted to be a doctor ,but was not able to and became an electrician instead. So his deep desire is to marry a woman doctor , which he does. But things don't turn out as he expected.