Kaun? Who Did it?

Adi Bhagat took voluntary retirement and started living a quiet life under mysterious circumstances. He seemed to have made peace with his life until API Malini knocks at his door to seek help for a case. When Adi refuses to peruse the case, Malini reminds him of his purpose to maintain justice and protect society. Adi assumes the current case would be just another mediocre one until Malini shows the evidence of the murder of Bindu Sinha, a successful Youtuber. What is it about the evidence that hooks Adi to take it up?

Dr. Chopra is found to be half burnt and dead in her apartment, just a few hours before her planned flight to the US. While sharing details of the case, Malini finds Adi absent-minded and glued to his game of chess. She throws a question that leaves Adi stunned - what led him to retire early from the force? A question that'll have to be answered, just as the question of who is the killer?

When the star of a popular daily soap, Aditi Kapoor, is found shot dead in her green room, Malini doesn't skip a beat in bringing the case to Adi Bhagat. Adi is particularly intrigued when he finds out that the bullet is missing from the crime scene. Adi is quick to read each suspect's behavior and traits, which are buried under the limelight. What is so unique about this case that Adi finds but leaves Malini surprised

He's back. The Stone Man Killer is at it again. Adi and Malini are curious to know why the The Stone Man Killer appears to have resurfaced again after years of being missing. The case is linked to the different cities of Mumbai and Kolkata, which challenges Adi further. What is it about the past that gives the clues of the present to Adi?

It's kind of unusual when a dead victim is found in a refrigerator carton on the road. It's even more uncommon that the refrigerator carton owner is also found dead due to an accident. It irks Malini when Adi shows more interest in the monkeys found near the crime scene instead of talking about the victim and the suspects. As Adi and Malini unravel the subtleties of the case, Adi unearths something completely unexpected.