Dhananjoy's story[4] is based on the conviction of Dhananjoy Chatterjee, accused for the gruesome murder of Hetal Parekh (altered to Hema Parekh), that took place in the year 1990. On the basis of circumstantial evidence and the inconclusive statements of the deceased's mother's and fellow workers, Dhananjoy Chatterjee, a security guard of their apartment, was executed and hanged to death on the early hours of 15 August 2004,[5] after serving imprisonment for 14 long years and after having appealed to all levels of court in the country; and finally, to the President of India.
The film begins with a young advocate Kavya Sinha (Mimi Chakraborty) recounting the controversial case of Dhananjoy Chatterjee to her senior advocate and mentor Shibraj Choudhury (Koushik Sen) whilst stating her urge to reopen the controversial case. Shibraj, impressed by her minutes suggesting a different side of reality, approves her of reopening the case and also decides to assist her in the process.[6]
The second half of the film has Kavya and Shibraj taking up the challenge to establish the idea that Dhananjoy may not have been guilty and Hema could have been a victim of honour killing by her mother Surabhi Parekh (Sudipta Chakraborty).[6]