The movie is set in the backdrop of Sattur town where Kombaiah Pandian is the local don and controls the entire town. Kidaari is Kombaiah’s loyal henchman who is ready to even sacrifice his life for the sake of his boss. One day, Kombaiah is stabbed in his neck by someone and the news comes as a shock to the entire town. Now, Kidaari sets stage to find the culprit behind the assault and lists out all the suspects. The movie goes into flashback mode frequently detailing the rivalry between Kombaiah and each suspect. Finally, Kidaari finds out that it was Kombaiah’s brother in-law, Poovaiah who happened to be Kombaiah’s close aide was responsible for the assault. Poovaiah admits that Kombaiah was stabbed accidentally when Poovaiah tried to safeguard him from Kombaiah. A flashback is shown detailing the rivalry between Kombaiah and his own son Nambi. Poovaiah’s only daughter was married to Kombaiah’s son Nambi. Trouble erupts between Nambi and his father Kombaiah which leads to Kombaiah killing his own son. This worries Poovaiah as his daughter has become a widow because of Kombaiah. This was the reason for Poovaiha’s anger over Kombaiah. Poovaiah also discloses a truth to KIdaari about the death of his father Kotur Durai. Years back, Kotur Durai was a henchman to a politician while Kombaiah was a side kick to Kotur Durai. However, Kombaiah betrays and kills Kotur Durai as well as the politician and stages a drama that the politician killed Kotur Durai and he had revenged by killing the politician which helped him establishing himself as a don in the town. Knowing this, Kidaari feels bad as Kombaiah’s affection towards him was fake and visits him in hospital and informs him that he had understood Kombaiah's true intentions. Kombaiah is saved, but loses his speech and Kidaari becomes the don of the town. Kidaari spares the life of Kombaiah but has instigated a fear of death in his mind which Kidaari thinks is a bigger punishment.
Cast
Sasikumar as Kidari
Nikhila Vimal as Chembha
Napoleon as Kottur Durai
Vela Ramamoorthy as Kombaiah Pandiyan
Pathman as Kadakkarai
Suja Varunee as Loganayaki
O. A. K. Sundar as Pulikutthi Pandiyan
Hareesh Peradi as S.N.Kaalai
Shobha Mohan as Kombaiah's wife
Vasumithra as Kombaiah's son
Raam as Ananth Velankar
Naadodigal Gopal as Pulikutthi's brother
Deepa Shankar as Ponnamma
Thenali
Mu. Ramasamy
K. N. Kaalai
R. S. Sathish
Production
Sasikumar began work on the film directed by Prasath Murugesan during March 2016 in Chennai. Sasikumar attained the title Kidaari from Samuthirakani, who had previously registered the title when making Kitna. The film was shot briskly over the month of May 2016, lasting 62 days in total, with the makers announcing that the film was entering its final phase during June 2016.
Soundtrack
composed the soundtrack. One of the songs, "Vandiyila Nellu Varum", was earlier featured in the debut album of La Pongal, a musical project founded by Siva.