Embedded with serious action and intense emotion, this crime thriller traces the efforts of one man to stand up against crime and corruption. An IPS officer, Ramanathan used to be idealistic and straightforward until his wife's murder and the ensuing events left him a changed man. Now transformed into a new-age Robin Hood, he uses dubious methods to help the innocent and needy. He also funds the operations of an orphanage for mentally disabled children.
In a separate scenario, Appu (Dileep) is in love with Daisy (Kavya madhavan) daughter of a wealthy politician. When her father comes to know of her love affair, she is placed under house arrest. At this critical juncture, a terrible tragedy occurs as Daisy's whole family is slaughtered by criminals. She is the only one left alive, and that too in a coma. The police investigation conveniently identifies Appu as the perpetrator, as he used to come into the house in secrecy, to meet Daisy.
Imprisoned for the murder of an entire family, Appu is placed in a hopeless situation. Now, it is up to Ramanathan to come to his rescue. Can he succeed in identifying the true criminals, exposing the real reasons behind the crime, and prove Appu's innocence?