Dhanya is a free spirited and brave girl who grows up supporting the Tamil's Elam fighters. She loses her home during the civil war, and faces many obstacles such as that. She later joins the local news channel as a broadcast journalist and reporter. Dhanya then begins to voice out her opinion and support to the LTTE. 

However, she runs into trouble with the Sri Lankan military troops. In this situation her husband and daughter is killed in a bomb blast. They soon kidnap and torture her in horrific ways. The rest of the movie revolves around the life story of Isaipriya, which is played by Dhanya.

Dhanya who plays the role of Isaiprya has performed well. She deserves an applause for the way she has emoted her pain and sufferings. Director Ganeshan's heart is at the right place as his attempt at making a biopic has turned out well. But technically, he has to improve his directorial skills. He has a long way to go. 

Legendary music director Ilaiyaraaja's has scored the music for the film, and except the songs, his background tunes are in sync with such a subject. The cinematography department is taken care by Parthiban and he could have shot better. 

In short, 18-05-2009 seems like a documentary.