| Director | Sandeep Shyam |
|---|
Vezham begins with a series of murders in the Nilgiri Hills. The killing pattern points towards a serial killer on the loose. From there, we randomly move to a romantic song featuring the lead pair, Ashok (Ashok Selvan) and Leena (Iswarya Menon), who share lovely moments in the misty hills. On their way back through the woods, they are attacked. Five years after this horrific incident, Ashok is still reeling in trauma of being the only survivor of the attack. His only purpose in life is to find the killer.
Ashok visits Ooty and stumbles upon killer brothers. Before killing them both, Ashok learns about a contract killer Kaasi, but Kaasi also turns out dead. Ashok persists and finds out that Francis was involved somehow. Ashok confronts Francis and comes to know that Leena kills the rapist of her maid in fit of rage. He turns out to be the minister's son, who arrange for the contract killing of Leena as a revenge. Ashok goes on a murder spree and kills all of them. Finally, Ashok gets to know that all these were orchestrated by Francis to usurp Leena's wealth and that Leena is in fact alive, married, and has a kid. Francis in order to claim ancestral home, he planted a scenario that Leena has died during accident and switched her with a look alike dead body. Ashok also finally murders Francis.