Jigarthanda English Cold Heart is a 2014 Indian Tamil black comedycrime film written and directed by Karthik Subbaraj. Produced by Kathiresans Group Company, it features Siddharth, Bobby Simha and Lakshmi Menon in the lead, while the supporting cast includes Nassar, Ambika, Karunakaran and Sangili Murugan. Gavemic U Ary was the films cinematographer, making his debut in Tamil cinema, and Vivek Harshan was the films editor. Santhosh Narayanan composed the songs and background score. The film was produced under Kathiresans production banner, Group company.

Karthik Siddharth is a shortfilm maker and aspires to make a feature film. He participates in a talent search program like Naalaya Iyakkunar and is in the semifinal round. The shows two judges include a highbrow film director Nassar who trashes Karthiks attempt at filmmaking and a profitoriented producer Aadukalam Naren who riles against the director, and declares that Karthik made the best film among the contestants. Though the director eliminates karthik from the contest,the producer offers to produce a film with Karthik as the director and both the judges storm out of the show. The next day, the producer is annoyed that Karthik took his words seriously and came to meet him. He is uninterested in the script that Karthik wants to film, and instead suggests that he wants to make a gangster film along the style of Nayagan, Thalapathi, The Godfather etc. Karthik takes this suggestion to heart and sets his mind on documenting the life of a gangster and making a film script out of it.With help from his journalist uncle Gajaraj, Karthik finds out about Assault Sethu Bobby Simha, a ruthless gangster in Madurai city, and decides that he will make a film about the life of Sethu. He travels to Madurai and enlists the help of a reluctant college friend Oorani Karunakaran to conduct surveillance on Sethu and his men. Since Karthik and Oorani are afraid of approaching Sethu directly, they plot to develop contacts with two of Sethus top henchmen. They also try to obtain information from an old shopkeeper Sangili Murugan who has been around since Sethu was a kid. To get closer to Sethu, Karthik also puts up an act of reciprocating the love of Kayalvizhi Lakshmi Menon, whose mom Ambika cooks for Sethu. Because of their various attempts to seek information about Sethu, they arouse the suspicion of Rasu Ramachandran Durairaj, Sethus righthand man, who puts an underling, Sounder Senthil Kumaran to watch Karthik and Oorani. Sounder becomes good friends with Karthik, and Karthik uses

Source: Wikipedia