
Just as Ashwin Kumar is about to conclude his investigation, his senior officer retires and a new CDI chief takes over. The narrative also briefly discusses the dissolution of Kumar's marriage with Reema (Tabu). On 22 June 2008, he officially exonerates the parents, and Ramesh Tandon is released from the jail. His team uses narco tests, attempting to prove that the assistant and his two accomplices committed the murders. He believes the parents to be innocent, and methodically builds a case against the father's resentful assistant. Kumar holds contempt for the sloppy first responders who botched the initial crime-scene investigation. The CDI team is led by Joint Director Ashwin Kumar (Irrfan Khan) and ACP Vedant (Soham Shah). This character assassination of Shruti leads to public outrage, and the case is handed over to the Central Department of Investigation (CDI), the country's elite investigating police agency. The police chief organizes a press conference in which he declares that Ramesh murdered Shruti and Khempal after finding them in a compromising position. On 25 March, the Noida police arrest Ramesh Tandon for the two murders. The police start suspecting the Tandons, and after sometime, declare the murders as a clear case of honour killing.

Kanhaiya tells the police that Ramesh Tandon might have been involved in an extra-marital affair, and Khempal might have been involved in a relationship with Shruti. The police question Khempal's close friend and Tandons' assistant Kanhaiya.

However, later, Khempal's decomposed body is found on the terrace of the building in which the Tandons live. Initially, they seek the missing servant Khempal. The local policemen, led by Inspector Dhaniram (Gajraj Rao) are incompetent, and do not know the basics of criminal investigation. On the night of 15-16 March 2008, Shruti Tandon (Ayesha Parveen), a 14-year girl is found dead at her home in Sameer Vihar of Noida, by her parents Ramesh (Neeraj Kabi) and Nutan (Konkona Sen Sharma). The film then goes into a flashback of events leading to the murders. At the function (1 April 2008), his senior officers hand him over a double murder case.
