One is a 2017 Indian Bengali language crime thriller film directed by Birsa Dasgupta under the banner of Shree Venkatesh Films. The film stars Yash Dasgupta, Nusrat Jahan in the lead roles and Prosenjit Chatterjee in the antagonist role in the movie. It is a remake of Tamil film Thani Oruvan (2015). The movie was released on 14 April 2017 all over the theatres in India.
Ronojoy and his friends are trainee policemen who are also self-appointed vigilantes at night. Aditya Sen, an exceptionally cunning and prodigious businessman, owns and runs a pharmaceutical empire. The national mafia and contract killer works on Aditya’s word. Ronojoy, with his sharp thinking and instinct, is suspicious of Aditya, for a number of seemingly unconnected criminal events, for which he secretly carries out an unofficial investigation. Trouble mounts when Aditya becomes suspicious of his intentions, and murders Ronojoy’s friend Abhijeet, an honest policeman. Later Ronojoy finds that Aditya is able to detect all his plan by satellite communication and he misdirected Ronojoy to kill Vicky. Ronojoy later collected all the evidences against Aditya and completely shattered him. At last, it is shown that Aditya died because of gunshot from his own girlfriend, and handovering all the secret information against the ministers which would be helpful as eveidence/proofs in future.
Yash Dasgupta as Ronojoy Bose IPS
Prasenjit Chatterjee as Aditya Sen, the main antagonist
Nusrat Jahan as Megha
Supriyo Dutta as MLA-turned-Minister Gobardhan Sen, Aditya’s father
Rajat Ganguly as Chief Minister
Bharat Kaul as leader of dock syndicate Damodar Pandey
Arjun Chakrabarty as Abhijeet IPS
Rachel White as Aditya’s girlfriend
Aryann Roy as Vicky
Debdoot Ghosh as pharma world mafia Ashok Ganguly
Rachel White as Herself