An idealistic cop and an ambitious scientist-businessman indulge in a high-stake battle of wits.

Ajay (Siddharth) comes to Kasi, where his thoughts and ideas on life and death undergo a sea change after he meets a young boy. He relocates to Chennai and stays in a house owned by a couple S V S Murthy (Mouli) and Jayam (Geetha). They treat him as their own son. A do-gooder, Ajay with his jovial nature wins the heart of all those whom he comes across. Vidya (Nithya Menen), a photo journalist meets Ajay and falls for his good nature. Ajay with the help of Vidya even gets street children obtain sponsorship for their education. But things take a turn when Vidya expresses her love to Ajay. He quietly walks off the place and decides to leave Chennai. But a rude accident to Vidya puts the responsibility on Ajay's shoulders to get her back to health. He takes her to USA for a surgery. Meanwhile a flashback reveals that Ajay was a successful doctor in the United States and who led a happy life.

Small-time diamond smuggler David befriends Goa-based gangster Abbasi. But when David begins to build inroads with an international gangster, Abbasi is not happy, and soon the two turn into bitter rivals.

When terrorists hijack a plane from Chennai, a struggle with the pilots damages the engine forcing them to make an emergency landing in Tirupati. NSG commando Ravi is entrusted with rescue operations.

A criminal group wants to stop a courier that has damning evidence against them from reaching the hands of an activist, but they underestimate the young man who has to deliver the package

Arjun begins a search for Shankar, his friend who had eloped with his lover from his village, and uncovers shocking truths...

Mudhal Mudhal Mudhal Varai also known as M3V, is a 2008 Tamil language film directed by debutant Krishnan Seshadri Gomatam, who previously worked as an assistant to Mani Ratnam and P. C. Sreeram. The film stars Sathyajit, Anuja Iyer, and Charan in the lead roles.