Velu, a cowardly cop with a family to support, is told that he has blood cancer and so, to get insurance and keep his family financially stable, he goes on a suicidal mission, by taking on criminals singlehandedly.
L'histoire commence par un meurtre de vengeance. Le but de Chidambaram était de couper la main de Vadakkooran, mais il a fini par le tuer. Chidambaram et son père s'échappent de la police et attendent le moment propice pour se rendre au tribunal.
Troubles worsen for Kumaresan after the capture of Perumal, and soon he is confronted with having to make a choice between performing his duties as a police constable, or taking a stand for what is right.