The movie begins with Dinesh confessing to the police that he has murdered someone. The scene then shifts to his past and we can spot Dinesh searching for a suitable alliance to share the rest of his life with. But, the prospective families keep rejecting him due to his professional designation as a garbage picker. That's how he meets Manisha Yadav, who accepts his hand at marriage, only after lying about his profession.
However out of guilt, Dinesh tells the truth to Manisha's parents. Impressed by his honesty, they still agree to get their daughter married to him. In the mean time, Dinesh marries Manisha and brings her to Chennai to live with him, who resides at the slums.
Manisha who is unaware about his living lifestyle soon begins to feel disgusted to live at the slums, and she also finds out about his profession. This causes a rift between the couple. However, they soon expect a baby, and Dinesh who is in love with his wife decides to buy a flat at a nearby decent area to make his family happy.
All is well for a while until Manisha initiates a friendship with a neighbour. It soon evolves into an illicitaffair and she runs away with him along with her child. A heartbroken Dinesh pulls his life together after a while, and decides to tracks his wife down to get custody over his child. The rest of the plot revolves around how he finds her and who he murders.
Choreographer Dinesh has now successfully donned the actor's hat. He has done an impressive job and his performance seemed to be more realistic than acting. Manisha Yadav's efforts with her character were fabulous and she has a long way to go in the industry. Yogi Babu has been roped into provide some humour, and his comedy clicks well with the audience.
Debutant Kaali Rangasamy has done an amazing job at the directorial department. It is a content driven story which sheds light on serious issues; poverty, job inferiority adultery and perfidy. The script is well sketched and has been transferred into the big screen in a convincing manner.
Joshua Sridhar and Deepan Chakravarthy have jointly taken care of the music department and they have done a decent job. Magesh Muthusamy has cranked the camera, and he has cpatured the daily lives of people who reside in the slum in an impressive way. Kudos to the cinematographer.
In short, Oru Kuppai Kathai is a honest attempt.