Mathimaran (Sivakarthikeyan) is an honest constable who does not like the corruption, prevailing within the police force. At one point of time, Mathiraman explodes at his higher official (Prabhu) who challenges him to expose a sensitive case. Interestingly Mathi, along with his girlfriend Divya (Sri Divya) comes across an underworld organ trade run by a powerful don Durai (Vijay Raaz) who is backed by political leaders and a Police commissioner.