In 1993, three serial heinous killings were committed by adolescent Khoka in Chinatown,. These victims were a local gang rival, a police informer and a police officer and he was captured by inspector Pranab Roy Chowdhury, elder brother of Prabir Roy Chowdhury. The story goes forward in 2019 where inspector Abhijit Pakrashi is given a case to capture Khoka who is now out of prison and committed a murder of a gang rival leader Haroo in the exactly same pattern same plot as he did in 1993. Abhijit is himself having a torrid time with his wife as he is suspecting his wife is having an affair with his journalist friend. Abhijit meanwhile starts the investigation with fellow officer Rajat. In the due course of time another murder takes place and that of an informer. From old video footage Abhijit finds a person present in all previous murder spots and he confronts him during which he denied of having connection or memory regarding Khoka. Rajat is also trapped by Khoka and mercilessly killed by him. Finally Abhijit gets hold off that old suspect and told him to call Khoka at an old place. After the initial confrontation it is revealed that Khoka is actually Paltan, the gay lover of Khoka and was wrongfully taken into custody so that he can take up the identity of actual Khoka and the actual Khoka can live a fresh life. It is also revealed that Abhijit is none other than but Khoka. It was done because when Khoka was taken into custody he was so badly beaten that he lost his memory for amnesia and the D.I.G. of Police gave him a new family and new identify as Abhijit Pakrashi and Paltan was forced to live the life of Khoka. Paltan loved Khoka very much and hence he accepted to live the life of Khoka. Paltan also explained that he did all three murders this time so that Abhijit can remember his past and his love with Paltan and also it was Paltan who tricked Abhijit to nab him. Initially Abhijit disagreed but eventually recognize Paltan and his love relationship and they hugged and kissed but in the end Abhijit killed Paltan so that the last link that can reveal his original identity is eliminated. It is also revealed that back in 1993, Khoka actually never lost his memory, all he did was to pretend of having lost his memory so that he can have a better future. In the last scene he ordered his favorite food chicken chowmin and chilli fish from a fast food stall.
