Kaun? Who Did it? - Season 1 (2021)

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.

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A high profile case of love and murder is just what the media is looking for. But this case is laced with the virtue of integrity and that of betrayal. Rohit Deshpande is killed just after a couple of days of his wedding to Meenu, the daughter of a business tycoon. But Adi's quick observation proves that there is no case he cannot crack.

If humans killing humans was not criminal and barbaric enough, we now have a ghost murderer. Adi is particularly intrigued about solving the case of Ghost Buster Saurabh Lalwani, who was set on fire to die by a paranormal spirit. Adi's childlike enthusiasm excites Malini to help him solve this case.

This is disturbing when one's own daughter goes missing without any trace but worse when she's found dead in an unusual place- A Bed Box Adi solves Aanya Vashisht's case with utmost casualness, while Malini is still amused with his candour.

What if you could solve a case by unearthing a buried past? With the evidence being intact and completely untouched, Adi and Malini bank on the victim, Amrita Kharat's suitcase, found at the crime scene After X years to solve the past remnants. How will the duo get the answers from the suspect by going back in time?

Birthday parties call for celebration and enjoyment. But Sheetal Garg's party takes a different route when her ex-boyfriend is found dead due to extreme blood loss after being hit by a beer bottle. Adi goes through the evidence one by one to finally recognize the killer.

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It seemed like a case of kidnap and murder when Pooja Saxena went missing and then was found dead later on. The case became interesting when WhatsApp messages of Pooja and her friends were retrieved and coded messages needed to be deciphered. And Adi and Malini do it in a way no one can.

A serial killer is on the loose, attacking women and setting the crime scene just like a birthday party. The killer is suspected of having extramarital affairs with the victims and things start to get spooky and suspicious when the victims are found to have a "Happy Birthday Ahilya" tattoo engraved on their arms. What is it about the tattoos that catch Adi's eye? And how does he solve the case with all the given evidence?

Rohit Verma suspects his girlfriend is cheating on him and plants a surprise camera in her bedroom. The events of the night take a drastic turn when Nishi, Rohit's girlfriend is found dead in the bedroom. Adi seems to be very repulsive of such insecure people, and Malini is yet again intrigued by his way of working.

When Malini comes over to Adi's house with a suitcase in hand, Adi gets excited to see her leaving the city. Malini rolls her eyes and clarifies that the suitcase is evidence. The suitcase contains the dead body of Wajib Khan, a small businessman. In his own meticulous way, Adi finds the truth which lies in front of us, maybe disguised in the form of gifts or pictures.

With great power comes great responsibility, and also many enemies. Devansh Mitra, a popular blogger is found murdered in his own apartment. The unique catch of this case is that Devansh had already posted about his death before on his social media accounts. But why? We also see a fun, refreshing banter between Adi and Malini, where Malini challenges Adi with a fact.

Amrit Dorjee, wasn't just a spectacular painter but also a genius marketeer. His paintings were popular for their art and the hidden clues to puzzles. Everyone is in for a shocker when Amrit is found dead in his own art gallery. But not Adi. It takes no time for Adi to find the killer. As the investigation progresses further, Adi teases Malini asking her to relax and sit back.

Karishma Soni collapses and dies on the spot at an esteemed fashion show. What's shocking is that, the model is murdered in an unusual manner through muscle paralysis. Things take a turn for weird where there are no traces poison found in her body. Adi and Malini debate and try to identify how this murder was even executed.

Malini is on night duty patrolling when she gets a call from Adi. He asks her to reach his home asap with all the evidence of the murder of Prateek Mukherjee, a school student. Malini is surprised when Adi mentions his hunch that says the accused, Shreedhar Pandey is framed. What could be the reason for it? And who's the real killer? The investigation opens some unique things about murder weapons, and we get a glimpse of Adi's past.

Adi is used to solving high profile cases and the murder of Professor Ramdas is surrounded by conspiracy theories. The professor, who was a newly appointed additional secretary of defence, is found dead in his office. It seems that it could be a case of poisoning. But can anyone say for certain? During the investigation, Adi mildly snaps at a restless Malini. And one of her questions makes Adi's eyebrows shoot up in a revelation.

Divya Maheswari's murder was ruled out as a sudden unexplained death in the autopsy report and her uncle Girish Maheshwari is accused of being the killer. But Malini comes to Adi to re-open the investigation as a direct order from the Prime Minister's Office. This triggers an already agitated Adi. The question is, if Divya's uncle is not guilty. Then who is?

Saurav and Gaurav, identical twins, are found murdered at a dockyard. Upon checking the crime scene it seemed like the case is of a double suicide. But Malini has her doubts, and hence she brings the case to Adi. With his accurate observation and quick thinking, Adi studies the evidence and rules out the suspects, one by one.

A distressed Malini reaches out to Adi when she comes across the case of a burnt body and its unknown identity. This case is unusual compared to the others, the evidence indicates one thing but the truth is something else and Malini is very eager to solve it. Where are the missing pieces of this puzzle?

The death of a popular novelist, Colonel, has the news channels highlighting the arrest of Moira, Colonel's 18 year old girlfriend, who confessed to the murder. Adi watches the news clips of Malini arresting the accused but an observation leads him to believe that she's not the killer. Adi investigates the entire crime scene virtually, on the phone but there's a more serious question on his mind.

After finding the answer to how Colonel died, it's now time for Adi to figure out who killed him. Continuing the method of virtual investigation, Adi interrogates all the suspects digitally with Malini's help. One by one the suspects talk to him, but in the end, it's Adi's mind and sharp eyes that catch the killer.

Mangal Yadav, a local candidate contesting for elections was found murdered in his room, with his thumb cut and missing from the crime scene. While the crime seems like a simple murder, it escalates when Adi and Malini realize that this case has more than one suspect involved. Even though Adi is quick to put two and two together, this time it is Malini who uncovers the facts one by one and presents the truth.

Roses come with their share of thorns. And this murder case comes in a similar pattern. It is intriguing for Adi to know that the victim, Mukulchand Raisinghania, was laid down on his bed on the day of his wedding, and covered with rose petals. In the end, it's the interrogation tape that helps the duo find the murderer.

Adi Bhagat, a retired police officer, is known for his unique ability to solve cases with sharp observation and clever deduction. But in an unfortunate circumstance, Adi's past comes back to haunt him when a convict is found dead in Adi's workshop, and the murder weapon is Adi's cane. Adi announces that he's being framed for the murder. But the process of interrogation leaves Adi and Malini with half-baked facts. What is the truth?

Adi Bhagat, retired DCP, has a knack for finding the truth during the interrogation process. But the death or the staged murder of an ex-convict, Chaubey, in his own house leads to a situation where Adi becomes one of the main suspects. With only 24 hours in hand, Adi has to be faster than ever before and figure out who killed Chaubey.

Recent developments in the staged murder of Chaubey has left Solanki, Adi's arch-enemy and ex-colleague, suspecting of Adi's involvement in the crime. But with Malini's help, Adi zeroes in on a few suspects from his past that reveal some major truths of his life, one by one. The closer Adi comes to the truth, the farther he goes from revealing the mastermind behind all this. Someone sinister is lurking in the background, who is it?

Just as Adi figures out his next step, destiny takes its own turn. Before retirement, Adi had arrested Haryana politician, Arjun Chautala during a live cricket match between India and Pakistan. This led to utter shame and disgust for Chautala and he carried a passionate vengeance ever since. Adi figures that Chautala could be the missing piece of this puzzle. But before Adi could reach him, Chautala collapses and dies during a Havan at his Mumbai residence. Who could be behind this?

Chautala's death led Adi to interrogate his family members. As much as he tried, with the help of Malini and Solanki, he couldn't figure out the reason for his death. After a thorough investigation, the team realizes that none of the family members killed him. The team then traces back Chautala's steps recreating a timeline of the day he died. Will Adi finally get his answers?

The clock is ticking and time is running out for Adi. The threat that he received has put Adi and Malini in a spiral and as crucial as it is for Adi to be saved, it's also very crucial to find out who's The Mastermind behind all this and what lead them to start all this. This time all the likely suspects were unexpected by Adi, and we go back to the past, from where it all began.