Produced by KTVR Loganathan, the film features an ensemble cast of R. Parthiban, Gokulnath, Jagan, P. S. Srijith, R. Ajay, Sanam Shetty, and Jothisha.

Suddenly, the dog is dragged inside and brutally killed by an unknown beastly creature called Ambuli.

They both travel the entire field and find a wooden cabin, where the ranger once lived, and they meet a mysterious man named Sengodan (revealed to be Ambuli's brother) there.

During that time, they found a collection of research films and journal entries documented by a gentleman named Sir Arthur Wellington.

Vendhan and Amudhan learn that Wellington was not only the founder of his self-named college in the southern parts of India but also a scientist who worked with the British army during World War II.

The also discovered that Wellington’s longtime goal was to successfully carry out and finish his project, the creation of a race of genetically-modified humans who can healthily live for 150 years.

He decided to use Ponni as his test subject and inject Neanderthal DNA that he has collected back in his home country into her womb.

Angered by this, Sengodan killed Wellington, who was the reason for his sibling’s deformity and savagery, and experiments on his mother that led to her suicide.

While setting out to meet Ambuli, Valarmalai attempts to attack Sengodan upon thinking he got Amudhan, Vendhan, and Poongavanam captives, only to stop by them and ended up joining them.

The villagers finally thank Sengodan, Marudhan, Amudhan, and Vendhan for their heroics in capturing Ambuli and thus ending their longtime fear.

Hari Shankar and Hareesh Narayan, who made their directorial debut with the horror film Orr Eravuu (2010), decided to shoot a mystery thriller based on folklore and superstition.

[2][1] The directors further disclosed that the plot revolved around "four youngsters who go in search of a story, the problems they face and how they overcome them", while clarifying that there was no villain in the film.

[3] Newcomers R. Ajai, P. S. Srijith, Sanam and Jothisha Ammu were signed on to enact the lead roles,[3] while Gokulnath, best known from the reality-based dance competition Maanada Mayilada, was selected to play the titular character.

In the third week, seven theatres from Madurai, Coimbatore, and Trichy agreed and equipped their screens with polarized 3D based on the enormous response from the audience for the film.

"[8] The soundtrack features eight tracks composed by four music directors, K. Venkat Prabu Shankar, Sam C.S., Sathish Kumar, and Mervin Solomon.