A woman is attacked in her apartment at night. Bade and Chitre debates in a restaurant, when a woman sitting on the side laughs and Bade assumes she is mocking them. Bade provokes Chitre to tell how will he avenge his insult.

Chitre unleashes his maniac side on the captive girl. Piya Verma is assigned the case of the serial killer. In a flashback, Bade uses extreme manipulation to instigate Chitre to take revenge on the girl who mocked him at the restaurant.

Devdutt Raj and his team refuse to co-operate with Piya Verma in the serial killer case. Facing a hostile, DCI Piya Verma uses the media to turn things in her favour. Chitre continues his sick game of torturing his female victim.

Piya Verma goes through the case file of the serial killer. The file reveals the details of the first two murders by the killer. It also shows the honest attempt made by the previous officer Devdutt Raj to catch the killer. The marital life of Piya worsens as Rahil gets more insulting to her.

Piya constitutes her own team to catch the serial killer. Bade manipulates Chitre to make Piya his next victim. The Killer contacts Piya Verma with a message that mocks their effort.

Piya decodes the message from the killer and then re-examines the last site of killing. Rahil is visited by his mom and they wait for Piya. Rahil gets physically abusive on Piya when she fails to show up at home on time.

Piya immerses herself into the murder case. Chitre invades Saloni’s house and assaults her. He injects her with neurotoxin, then rapes her before finally killing her. Chitre and Badey are rejoicing as they have taught the girl a lesson, for laughing at them. Piya returns home to find Rahil misbehaving without reason. Piya later finds Rahil talking to someone and being in good mood. She finds it upsetting. Back at office, Saloni’s mother comes to meet Piya.

Piya and her team visit Saloni’s house to investigate. Chitre stalks Piya as she goes about doing her job. Piya notices him but doesn’t give much heed to it. Badey is upset with Chitre for changing the plan of dumping the body in the forest and instead staging it at Saloni’s house itself. He says it’s too risky, but Chitre wants to have fun. Piya makes a critical discovery and instructs her team to scout the place for CCTV footage.

Piya and her team are trying to solve the Saloni’s disappearance case. Meanwhile, Vasu, on Devdutt’s instruction leaks the news to the media, which forces the entire department to be on their toes to solve the murder. Piya handles Saloni’s mother with confession, who is distraught over her loss. Chitre and Badey figure out that Devdutt might have leaked the news to put Piya on the spot. He decides to teach Devdutt a lesson.

A press meet is organized for Piya to update the media about Smiley Killer case. Piya handles herself well despite being new to the job. The Home Minister and DCI chief are pleased that their plan worked to find someone to take charge of the risky case. Piya gets to meet the investigation team. When she returns home from work, Rahil doesn’t let her in. Piya is forced to go back to her office to spend the night. Meanwhile Chitre and Badey are plotting to get Devdutt out of their way. Piya’s instinct pays off and the team finds a clue to track down the killer.