Ruksana and Siddhartha interrogate murdered pornstar Devika's roommate and porn filmmaker, Vicky Patel. They discover two mysterious elements at the crime scene that lead them to a political bigwig.

As another identical murder scene crops up, it becomes clear that a serial killer is at large. Ruksana and Siddhartha meet Pabitra Chatterjee, who claims to not know of Debika but has connections with Prakash and Viki.

The police discover a shocking truth related to Prakash, Devika, Viki and Tanya. While Pabitra grows fond of Ruksana, Bipul meets a fateful end.

The connection between Bipul and Devika comes to light. While Tanya blackmails Abirlal, Pabitra presents an insightful picture of the Mahabharata to Ruksana that helps her somewhat connect the dots.

After being taken off the case, Ruksana advises Siddhartha to probe the connection between Pabitra and Devika. Viki reveals Abirlal's secret to Ruksana. When Tanya gets into Javed's car, Siddhartha follows them.

While Pabitra tells Ruksana about his journey of becoming Yudhishthir, they figure out who the next victim may be. While another murder baffles Sushmita, Ruksana discovers a book that contains a vital clue.

Ruksana senses that Siddhartha is in danger. While Pabitra tries to contact Ruksana to share vital information, the latter discovers hints about Siddhartha's dark past.

The police are on the lookout for Abirlal. When Pabitra reaches his hotel with Ruksana, the two face a grave attack.

Ruksana discovers the link between Siddhartha and Laltu. She tracks Laltu to a hotel in the hills where something huge is at stake.

Ruksana explains to Pabitra how she figured out that Abirlal was not the Mahabharat Murderer. While Pabitra is stunned into silence, he is also impressed by Ruksana's intellect.

The world discovers the identity of the Mahabharat Murderer. Ruksana feels content having cracked the life-altering case.