Sakthivel (Vijayakanth) and Thangarasu (Vijayakanth) are stepbrothers and both are respected by the villagers. But Sakthivel refuses to even acknowledge Thangarasu as his brother since he believes that it was Thangarasu's mother who killed their father. Thangarasu too is under this impression until his grandfather (R.Sunderrajan) tells him the truth. Their father (Vijayakanth), whose first wife (Ambika) was a sharp-tongued woman, married Kannamma (Viji) when she earned a bad name. Thangarasu, who is now convinced that his mother was a good woman, sets out to find the truth.
Suffering short-term memory loss after a head injury, Leonard Shelby embarks on a grim quest to find the lowlife who murdered his wife in this gritty, complex thriller that packs more knots than a hangman's noose.
With computer genius Luther Stickell at his side and a beautiful thief on his mind, agent Ethan Hunt races across Australia and Spain to stop a former IMF agent from unleashing a genetically engineered biological weapon called Chimera.