Vettah is a crime thriller movie that revolves around the kidnapping of a movie star and the subsequent revenge plot. The story takes an unexpected turn when a college reunion is revealed to be a part of the conspiracy. A female police officer is determined to solve the case and bring the culprits to justice.

Vandana and Aby are outstanding volleyball players. An accident changed Aby's life forever. Aby is so disheartened that his dream will never come true. Vandana sets off to Central Jail to select efficient players to fulfill Aby's wish.