GV Prakash's mother, Sujatha Sivakumar, is on a mission to find a suitable alliance for her son as soon as possible. But, since he is a street vendor the families of the prospective brides keep rejecting him. That's how he meets Arthana Vijayakumar. GV Prakash somehow manages to charm her and her family to accept his proposal. 

In the meantime, both GV Prakash and Arthana fall deeply in love. However, when Sujatha and GV Prakash plan to finalise the proposal with few traditional bindings, Arthana's father Mansoor Ali Khan suddenly calls of the entire alliance off. Sujatha feeling betrayed on an impulse decides to take her life. 

This situation pushes GV Prakash to seek vengeance on Mansoor Ali Khan. The rest of the plot revolves around how he gets his revenge, why the marriage his suddenly called off and what happens to his love life and Arthana? 

Set in the backdrops of Trichy, music composer turned actor GV Prakash has pulled off his rural character decently. Arthana Vijayakumar, has given a pretty performance. 

Yogi Babu, who plays the role of GV Prakash's friend has done a good job at humour department. Most of his comedy sequences works well with the audience. Kovai Sarala, Sujatha Sivakumar and Mansoor Ali Khan have done justice in playing their parts neatly. 

Debutant Vallikanth has done a pretty decent job in the directorial department even though many loose ends are evident. The wafer-thin story and the loose screenplay has nothing new to offer but has the elements one expects from a true commercial movie.

Apart from acting GV Prakash Kumar has also composed the tunes for the film. He is known for his power packed background score and soulful melody. However, GV fails to produce an awe striking tune for both. It is just average. Vivek Anand has cranked the camera and his shots are decent. 

In short, Sema is a commercial flick.