Rajkumar Banerjee /Raja (Jeet) is a professional assassin, and Joy (Indrajit Chakraborty) is his partner. They charge Rs. 15 million per assassination.
A party leader, Amarnath Ganguly wants someone to attempt an assassination on him so that he can get more sympathy votes in the upcoming election.Amarnath Ganguly's colleague Shubhankar Banerjee(Biplab Chatterjee) hooks him up with Raja for a deal. However, before Raja can shoot Amarnath Ganguly, someone else fatally shoots him. Within minutes, police surround the building. Just before the exit of the building, a big car accident occurs on the street with Raja's car. Raja assumes that Joy got trapped and died in the accident. So Raja goes to the top of the skyscraper. With the police behind him and in front of him, he is helpless. Suddenly a train comes and Raja uses a rope to jump from the skyscraper to the train.
On the train, Raja meets Shibu (Atanu Mukherjee). Shibu reveals that he ran away from his village, Ganganagar, when he was young, he explains that he is finally returning to his village. Later that same evening, while aiming for Raja, the police accidentally shoot Shibu. Raja escapes and decided to go to Ganganagar. Thinking that Raja is Shibhu, his family accepts Raja into their family.
Meanwhile, a CBI officer, Salim Ali Khan (Sharad Kapoor), investigating the murder of Amarnath Ganguly comes across Raja alias Shibu. He suspects Raja of Amarnath Ganguly's murder.He tries taking Raja's fingerprints unconventionally but Raja outsmarts him. Soon clues lead to Joy but he is dead.
Meanwhile, in Ganganagar, after the marriage of the granddaughter was over, the CBI come because they find out that Raja is not Shibu and suspect that Raja is the killer. Raja learns of the situation and flees. After the CBI leave, Raja returns to explain everything: who is he and how the real Shibu was killed. At first the family shows no interest in helping Raja to find the real assassin as they are all shocked but the grandfather (Biswajit Chakraborty) helps Raja by giving him a gun. Raja calls Shubhankar Banerjee and demands to know who killed Amarnath Ganguly. At first, Shubankar Banerjee refuses but after Raja tells him that he recorded their first conservation on the phone,Shubankar Banerjee reveals everything. It was Joy who killed Amarnath Ganguly for Rs. 20 million. He faked his death by sending a drunkard in the car at the time of the accident. Raja records this conversation and immediately leaves for the old church, where Joy is. Raja and Joy meet and Raja has the gun loaded before Joy. But the same policemen who killed Shibu barge in. Raja manages to kill all of them and also kill Joy. Raja hands over the recorded cassette to the CBI officer. The CBI officer goes directly to Shubhankar Banerjee's office and tells him that he will hand him over to the police. Shubhankar Banerjee tells him that he has no concrete evidence. The CBI officer tells him that the tape is evidence enough for Amarnath Ganguly's hot headed son,who has vowed vengeance for his father's death.Trapped without any recourse,Shubhankar Banerjee commits suicide. In the last scene, Raja immerses Shibu's ashes and the CBI officer lets him go to Shibu's family, where he stays forever.