The story revolves round an honest and brave police officer. He arrives at Haridevpur to curb the norotious leader Nishikanta Saha and his associate, the MLA. On his arrival day, O.C Shubhankar Shanyal rescues a widow from getting tortured in the hands of Nishikanta's men and recognises Nishikanta as a corrupt leader. Nishikanta plans with the MLA to bribe the O.C and bring him on their side. Nishi also complains to inspector Haradhan Banerjee about the new man causing problems for them. Sub-inspector Alok was aware of the probable danger that the O.C could face on his way back home and warned him. O.C found Nishi's follower Abdul following him. The next day O.C got a complaint against the MLA's son who had harrased a school master's grand daughter. Nishikanto planned to kill the O.C and sent Abdul for the porpose. But OC caught Abdul and locked him in the police station. Nishi tried to bribe the OC for releasing Abdul but failed. OC gradually came to know about Nishi's alcohol business. One day the OC captured Bapi when he was teasing a girl. MLA threatend OC to release him but he did not give in to MLA's power. One night OC met Chottu, who threw stones at him, and learnt about Chottu's resentment towards the police. OC asked Alok about Chottu's father, Paran's case. Alok explained the unnatural death of Paran. OC and Alok plan to capture Paran's murderer by releasing Abdul but failed as the news was leaked by Haradhan to Nishi. Abdul was killed and the OC was blamed as the murderer. Then with SP's cooperation, OC determind to prove himself innocent within 48 hours of suspension. Haradhan again tried to cheat the police but was caught by the OC. Before getting fired from his job Haradhan realised his sin and helped the OC to prove that Nishikanta was the real criminal responsible for Paran's murder. Nishi was arrested by the OC.