Thadayam is a 2026 Tamil crime-thriller web series set against a disturbing chain of murders along the Tamil Nadu-Andhra Pradesh border. The story follows SI Adhiyaman, a police officer nearing voluntary retirement, who notices a pattern hidden inside what first appears to be a routine theft case.
Samuthirakani leads the series as SI Adhiyaman, with Sshivada, Raj Tirandasu, Munnar Ramesh and Sundharpandyan in key roles. Written and directed by Navinkumar Palanivel, the six-episode first season premiered on ZEE5 on February 27, 2026. The series is inspired by events reported in 1999, but its investigation and character treatment are presented as a dramatised crime story.
Thadayam Web Series Cast
Samuthirakani as SI Adhiyaman
Samuthirakani plays SI Adhiyaman, the central investigator. Adhiyaman is waiting for voluntary retirement when a theft case draws his attention. What seems minor at first begins to reveal a larger pattern, forcing him into a difficult interstate investigation involving murders, missing clues and repeated signs left behind by the offenders.
Sshivada as Inspector Lakshmi
Sshivada plays Inspector Lakshmi, one of the police officers working alongside Adhiyaman. She becomes part of the investigation as the case expands beyond a single village and the team starts connecting incidents across the Tamil Nadu-Andhra Pradesh border.
Raj Tirandasu as Suruli
Raj Tirandasu appears as Suruli, a character closely linked to the crimes being investigated. As the police gather survivor statements and revisit the sequence of events, Suruli becomes important to understanding how the cases are connected.
Munnar Ramesh as DSP Gunasekaran
Munnar Ramesh plays DSP Gunasekaran. He represents the senior police structure around Adhiyaman’s investigation and remains involved as the case grows from a local theft inquiry into a serious murder hunt.
Sundharpandyan as DSP Rayudu
Sundharpandyan plays DSP Rayudu, another senior police officer connected with the interstate side of the investigation. His presence becomes especially relevant once Adhiyaman and his team begin following leads in Andhra Pradesh.
Prem as Ravi
Prem appears as Ravi in the supporting cast. His character is part of the wider group of people whose statements and circumstances help the police understand the pattern behind the crimes.
Vishakan as Inspector Sandeep Reddy
Vishakan plays Inspector Sandeep Reddy. The character becomes part of the cross-border police response once the investigation moves into Andhra Pradesh.
Pulipandi as Driver Palraj
Pulipandi appears as Driver Palraj, while Kotravai plays Suruli’s wife, Suparna appears as Suruli’s sister and Abhishek Joseph George plays Arjun. These supporting roles help build the village-level human context around the central investigation.
Thadayam Web Series Crew
Navinkumar Palanivel is the key creative force behind Thadayam, serving as writer and director. Ajey Krishna produced the series under the Cocktail Cinemas banner, while the technical team includes KK on cinematography, Dinesh Kumar on editing and Vibin Baskar on music.
- Writer and Director: Navinkumar Palanivel
- Producer: Ajey Krishna
- Executive Producer: S. Saravana Kumar
- Creative Producer: R. Saravanan
- Production Company: Cocktail Cinemas
- Director of Photography: KK
- Additional Cinematography: Mohankumar Palanivel
- Editor: Dinesh Kumar
- Music Director: Vibin Baskar
- Production Designer: Manikandan Chandrasekar
- Sound Design: Arul Murugan
- Co-Director: Viswanathan Pugalendhi
Thadayam Web Series Story
The story is set in 1999. SI Adhiyaman is nearing the end of his police career and is waiting for voluntary retirement when he is asked to look into a theft. Another village soon reports a similar incident, and Adhiyaman notices details that suggest the cases may not be isolated.
His search for a lead takes the investigation towards the state border. When Adhiyaman and his team reach Andhra Pradesh, they discover that the pattern goes far beyond theft. A series of murders appears to carry similar signs, forcing the officers to examine earlier crime scenes and compare what the victims had in common.
The case grows more dangerous as another killing takes place while the police are already investigating. The team splits up, questions villagers and survivors, and follows evidence that points towards more than one possible offender. Each new clue widens the search instead of bringing an easy answer.
Adhiyaman’s strength in the series is observation rather than flashy action. He keeps returning to small details in the victims’ belongings and statements, gradually building a theory about how the offenders choose their targets and move between locations.
By the final episodes, the police narrow the search to the suspects’ last known location. The evidence suggests that Adhiyaman may be dealing with multiple people rather than a single killer, setting up a coordinated attempt to separate and arrest them. The six-episode season therefore works as one continuous investigation, moving from an apparently ordinary theft case to a much larger murder mystery.
How Many Episodes Are There in Thadayam?
Thadayam Season 1 has six episodes. All six episodes were released on February 27, 2026, with individual runtimes ranging from about 17 to 29 minutes.
- Episode 1: The First Case
- Episode 2: The Border
- Episode 3: Truth Meets Devil
- Episode 4: The Warning
- Episode 5: Find The Devil
- Episode 6: The Conclusion
Thadayam OTT Platform and Release Date
Thadayam premiered on ZEE5 on February 27, 2026. The complete six-episode first season is available on the platform in Tamil, with Telugu, Malayalam and Kannada audio options also listed.
As of September 2026, ZEE5 has also started promoting Thadayam 2. The follow-up season is officially listed as coming soon, with Samuthirakani returning as Adhiyaman. A confirmed premiere date for Season 2 has not yet been announced, so the currently available season remains the six-episode 2026 original.
What Kind of Series Is Thadayam?
Thadayam is a compact police procedural and serial-crime thriller. It does not depend on a large ensemble or multiple unrelated subplots; most of the tension comes from Adhiyaman’s attempt to recognise the pattern connecting crimes across villages and state borders.
Its short episode lengths keep the investigation moving quickly, while Samuthirakani’s restrained performance gives the series the feel of a methodical case file rather than a conventional action thriller. The announced second season suggests that Adhiyaman is being developed as a continuing investigator for a new case.
