If you are looking to watch an entertaining thriller on OTT, then ‘Kaattaan’—an intriguing web series starring Sethupathi—is for you. Although this 10-episode series was originally made in Tamil, it is also available to stream in Hindi. Here is everything you need to know—from the plot and cast to where and when you can watch it.
You can watch an entertaining web series featuring Tamil superstar and versatile actor Vijay Sethupathi on JioHotstar. Originally made in Tamil, the series is titled ‘Kaattaan’. Its two-minute trailer is so gripping that it leaves you thrilled. The story begins with a severed head. A police station, which was on the verge of shutting down, finds itself engrossed in the investigation surrounding this severed head. The head belongs to Vijay Sethupathi’s character, Muthu—also known as Kaattaan. As the investigation unfolds, the mystery surrounding Muthu deepens. To some, he is a skilled watch mechanic; to others, an elephant trainer.
Some describe him as a bodyguard for a dance troupe, while others see him as a dreaded criminal who wreaked havoc in the underworld. The question remains: who exactly was Muthu? Who killed him, and why? But the biggest question of all is—why is the severed head smiling? Yes, there is a smile on the face of Muthu’s severed head; there is no trace of fear or any injury marks from a struggle.
The Vijay Sethupathi-starrer ‘Kaattaan’ is an action-thriller series set in a rural area. Originally made in Tamil, this 10-episode series was also released in Telugu, Hindi, Malayalam, Kannada, Marathi, and Bengali. The series has received an ‘A’ rating due to its violent scenes and graphic content. It is directed by M. Manikandan and features Milind Soman alongside Vijay Sethupathi.
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The Story of ‘Kaattaan’
The series revolves around an investigation by the local police in a rural area of Tamil Nadu. A severed head is discovered atop a mound in the village. It turns out to belong to a man named Muthu, whom some view as a hero while others label a criminal; opinions vary widely among the villagers. Some regard him as a brave protector, while others see him as a ruthless monster.

The two-minute trailer opens intriguingly: a police station is on the verge of closure because no cases have been reported there for a long time. The officers are packing up, as the station is due to be vacated within a week. However, a severed head is suddenly found on a mound. At first glance, it appears the person was killed, yet the severed head is smiling—there is a smile on its face. After all, a person wouldn’t lose their life while smiling. The police face a further complication: how does one conduct a post-mortem on a head without the rest of the body? A team of officials is currently searching for the body.
A watch mechanic, an elephant trainer—who was Muthu?
The police investigation revealed that the man to whom the head belonged was named Muthu, alias Kaattaan. In 1997, he worked as a watch mechanic in Ottanchatram and was highly skilled at his craft; those who knew him claimed they had never seen an artisan quite like him. It was further discovered that by 2005, he had taken up the job of training elephants, only to leave the area later with a man from North India—possibly for Mumbai.
Muthu was also a bodyguard for a dance group—who is hiding the truth?
As the story unfolds, it is revealed that his job involved handling Muthu’s finances. In 2013, he worked as a bodyguard for the ‘Kanmani Dance Group.’ The police also visit the dance group for questioning. They suspect that everyone questioned so far is concealing something, though they do not yet know exactly what.
Another major twist: a warning to the police—you won’t be able to find him
The story takes another turn. Those who know Muthu tell the police that no one can kill him. One character remarks, “To kill Kaattaan, one needs to be a ‘Kaattaan’ oneself. I have seen many ruthless killers before, but this man—Kaattaan—has unleashed absolute hell.” Finally, the police receive a warning: “Sir, you could spend a year searching for him, yet you still wouldn’t find him.” While the police are tied to the station because of this case, Muthu left a clue behind as he vanished; the police simply failed to recognise it.
Kaattaan Trailer
Kaattaan OTT Release: When and where to watch Vijay Sethupathi’s series
M. Manikandan, the director of the web series ‘Kaattaan’, reveals that the story was crafted from the very beginning with the potential for two seasons. However, a decision regarding a second season will be made only after gauging the audience’s response to the first season. The series on JioHotstar in multiple languages, including Tamil and Hindi.
Cast of ‘Kaattaan’
M. Manikandan is the writer-director, while B. Ajithkumar has co-directed the project. This also marks Manikandan’s comeback; he returns with ‘Kadaisi Vivasayi’ following ‘Kaaka Muttai’. Apart from Vijay Sethupathi, the series features Milind Soman, Singampuli, and Muthukumaran.
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