Fox is a thriller drama that revolves around a successful criminal lawyer, Arjun Kapoor (Arjun Rampal). Arjun travels to Goa, where he meets an old man, Vivian McNamara, a retired lawyer and author of the novel ‘Fix the Fox’, a crime thriller about the murder of five lawyers. Vivian McNamara gives the manuscript to Arjun, who reads it in one night. The next day Arjun finds out that the author is dead, so he publishes the novel under his name. The novel becomes a bestseller and gains him a lot of fame. A local police officer, Yashwant Deshmukh (Sunny Deol) notices the similarity between the five murders in the novel and five unsolved murders on the files, and Arjun is accused of the murders. Will Arjun’s greed bring him more trouble?