Grandmaster is a 2012 Indian Malayalam-language neo-noir action thriller film written and directed by B. Unnikrishnan and produced by Ronnie Screwvala and Siddharth Roy Kapur under the production company UTV Motion Pictures. The film stars Mohanlal as IG Chandrasekhar, a senior IPS officer who begins investigating a series of murders after receiving an anonymous note. The supporting characters are played by Priyamani, Narain, Anoop Menon, Babu Antony, Jagathy Sreekumar, and Arjun Nandhakumar. Grandmaster was the debut Malayalam production of UTV Motion Pictures. The film was released on 3 May 2012 to widely positive reviews from critics and was a success at the box office. Grandmaster was released in the online video streaming service Netflix in the United States and Canada, making it the first ever Malayalam film to be released on Netflix. It was also the first Malayalam film to be released with English subtitles outside Kerala. The movie is based on the book The A.B.C Murders by Agatha Christie which was already adapted by Unnikrishnan for the script of a TV series named Black and White. Plot IG (Inspector General) Chandrasekhar, a senior IPS officer, is the head of the newly created Metro Crime Stopper Cell in Kochi. Chandrasekhar arrests Jerome, a psychologically deviant man, and rescues three girls he had kidnapped, but his ex-wife Deepthi, who is a lawyer, manages to get Jerome sent to treatment in a psychiatric facility, rather than a prison sentence. It turns out that the three girls had been insulting and harassing Jerome, which had led to his actions of kidnapping them in the first place. Chandrasekhar gets a congratulatory note from an anonymous man calling himself "Z," who challenges Chandrasekhar to figure out how he is going to bump off one target after the other. Chandrasekhar is forced to investigate a string of murders: coffee shop owner Alice, famous singer Beena Thomson and leading businesswoman Chandrika Narayanan. These murders follow a mysterious alphabetical pattern, and each victim also has a cross slit on their forehead. Around the same time, Chandrasekhar's daughter is preparing for a play under the lead of famous actor Mark Roshan. Chandrasekhar divorced ten years earlier because he discovered that Deepthi, his wife was using information from him for professional gain. Deepthi confesses to Chandrasekhar that the three recently murdered women were all involved in the murder of a man named Paul Mathew and made it look like a