Kathiravan, a major in the Indian army with anger management issues, is compelled by circumstances to borrow a loan from a bank with false documents. When the entire money in the account vanishes, Kathiravan tries to track down the scamsters, and it leads him to White Devil, a master hacker.

A notorious gangster Vedha surrenders himself to encounter specialist Vikram whom he challenges every step of the way by narrating his life events in the form of riddles that needs to be solved in order to capture him.

Sethupathi, an inspector, investigates the murder of a cop and finds that Vaathiyar, a big shot, is responsible for the killing. He arrests Vaathiyar, but an unfortunate incident that has a connection to the case he is investigating, puts his career in jeopardy.