Unnidathil Ennai Koduthen is a 1998 Indian Tamil-language romantic drama film written and directed by Vikraman. The film stars Karthik and Roja, with Ajith Kumar in a guest appearance. Ramesh Khanna, Moulee, Sathyapriya, Fathima Babu, and Madhan Bob play other supporting roles. It was Karthik's 100th film.

Plot

Selvam and his friend Bhaskar are petty thieves, who live their lives by stealing stuff from people. One day, they are assigned a job to steal a Ganesh Idol from the temple, for a man who had just moved into a new house, citing prosperity as a reason. The friends succeed in stealing the idol but are spotted by the people who start chasing them. They hide in a house and encounter Radha. Radha is a maid in the house and is looking after the owners' three children while the adults are away on pilgrimage tour. Radha and the kids lock the two of them in a room and order them to do stuff for three days. Radha, while spending time alone in the house with the guys, realise that they are not bad after all and develops a soft corner for Selvam and he in return, falls for her. The guys are released after three days, the day the owners are to return.