Dhoolpet celebrates Ayudha Pooja, and the police station gets alerted after news of a new ACP’s arrival. And a mysterious stranger with a gun checks into a lodge, while Constable Maasani gets intuitions on murders about to happen on the same night, the very next morning in the town, two young boys are found near a temple holding a head, which creates tension around Dhoolpet.

Chandra proudly surrenders her sons at the Dhoolpet Police Station for avenging their father’s death, creating tension when two politicians intervene. Soon after, a burnt head was found in the dump yard and that led the police dog straight to the lodge of the mysterious stranger. During interrogation, the officers discover that he is actually their newly appointed ACP Vetrimaaran. As he takes charge, a woman’s severed head unexpectedly falls from a fish laden tricycle after an accident, adding horror around the town. Vetrimaaran heads to the forensic lab and examines all three recovered heads.

A haunting past resurfaces as Vettrimaran confronts old scars, while a single piece of jewellery drags Sukumar into a mystery that reveals a missing girl’s terrifying truth.

ACP Maran interrogates Sukumar. Evidence is found both at Sukumar’s workplace and at his house. Maasani’s intuition says Sukumar is innocent, yet the forensic intelligence begins to suspect him.

Maadhangi, the lawyer who takes up Sukumar’s case, challenges Maran, saying she will confront him in court. ACP Arjun joins ACP Maran in handling the three murder cases.

Arjun and Maran split up their tasks. Maran begins his pursuit of two murder cases, while Arjun sets out to investigate one murder case.

Maran moves into the first floor of Maadhangi’s house. Arjun begins his investigation with Ratnam’s family. During the course of Arjun’s inquiry, Priya secretly follows him.

Displeased with Arjun’s way of investigation, Maasani decides to quit the job. However, when Arjun explains the truths he has uncovered in his investigation, Maasani develops respect and admiration for him.

Maran cleverly handles the harassment caused by Mathangi to make him vacate the house. Meanwhile, as Arjun conducts an investigation at Ratnam’s second wife, Kanchana’s house, an unexpected twist occurs.

Maran discovers that Mathangi is his childhood friend. Priya informs Arjun about the impending danger. Maasani begins to see mysterious illusions connected to the case.

On the way to the court, three mysterious men attempt to kill Inba Sekar, and Maran encounters and neutralizes them. Sukumar escapes from Arjun’s custody and goes missing. The Commissioner gives Maran and Arjun a three-day deadline.

Arjun strongly condemns Periyathambi’s attempts to tamper with the evidence. Maran shows intense determination to save the absconding Sukumar. The entire focus of the police turns towards Kanchana.

During the investigation, Kanchana reveals certain truths to Arjun. Sukumar decides to kill his friend Suruli. Maasani tells Arjun that she is a woman from the hills.

Suruli attacks Sukumar, who came to kill him, and manages to escape. Maran and Mathangi admit an unconscious Sukumar to the hospital. While interrogating Kulfi Ramesh, Arjun discovers who the real killer is.

Sukumaran regains his memory. Johnny sacrifices his life while planning to kill him. Umapathi gets caught in the trap set by Maran.

Umapathi confesses to killing his daughter Sandhya in the name of honor. Chandra finally breaks her silence.

Sukumaran falls into Sandhiya’s funeral pyre and takes his own life. Maran and Arjun team up to try and solve the third murder.

The story of Anand becoming Anandi. When the family says they will accept Anandi, Anandi refuses

Anandi’s husband seeks refuge with the police and gives a statement that Kailasam killed Anandi.

The mystery unravels and the truth about who killed Anandi comes to light.

Maran, Madhangi, Maasani, Arjun, Priya, and everyone from the Thoolpettai police station gather together at a farmhouse for the Commissioner’s daughter’s wedding.

As the celebrations peak at the Commissioner’s daughter’s engagement party, an argument erupts between Arjun and Priya at the end of the drinking session. Storming out in anger, Priya ends up in danger when she gets caught by a psycho!

Arjun safely rescues Priya, who was trapped by the psycho, and brings her back to the engagement ceremony. During the mehndi function, romantic feelings begin to blossom between Maran and Maasani.

On the night after the engagement ceremony, the Commissioner’s daughter Diya is found dead under mysterious circumstances. Forensic findings and Maasani’s intuition point to one thing,this is not suicide, but murder. Who is the killer?

Maran’s investigation reveals that Diya had expressed her unwillingness to go ahead with the marriage to the groom, deepening the suspicion. Arjun and Maasani travel to the village in search of her missing lover Darshan, where a new mystery unfolds.

During Darshan’s interrogation, a mask and disturbing clues found in his house create shocking revelations. In a sudden twist, the mentally unstable psycho who abducted Priya is caught, pushing the case in an unexpected direction.

When the Commissioner suddenly goes missing, everyone panics and begins searching for him. Eventually, at a farmhouse, Maaran finds the Commissioner—shattered by the grief of losing his daughter. Meanwhile, during the Arjun–Masani investigation, a crucial piece of evidence emerges that points to the identity of the killer.

Vasanth’s one-sided love and Meera’s jealousy-driven mind come to light.A shocking revelation confirms that Diya’s death was not an accident, but a carefully planned murder.

Under the guise of plumbing work, Kumaresan and Murugan secretly plant a bomb inside the Dhoolpet Police Station. At the same time, a domestic dispute case turns into a clash of Maran vs. Arjun’s styles, plunging the station into chaos.

Maran smartly reunites a couple who arrived at the station fighting. At the same time, Arjun captures the plumber who planted the bomb, and the explosion is prevented at the last moment.

It is revealed that a professor was behind the bomb planting. As ADCP Natarajan orders an encounter, what decision will Maran take?

Vetrimaaran discovers that the professor planted the bomb because his daughter was brutally assaulted and murdered. When it is revealed that the culprit is a police officer, will Vetrimaaran uncover the real criminal?

Maasani, Arjun, with Vetrimaaran, questions Ebin. When Maasani trusts him, Arjun warns her to focus on the truth. Ebin denies everything, but when Vetrimaaran interrogates him severely, Ebin reveals the truth.

With the information given by Jasmine, the police questioned ADCP Natarajan driver Pandian. Meanwhile Maasani get disturbing intuitions.

When ADCP Natarajan arrives at the site of the encounter, Arjun and Vetrimaaran reveal the identity of the culprit, which shocks them. Later, they explained to Maasani and Madhangi how they tracked him.

At Dhoolpet Police Station, a man named Vetrimaaran files a complaint stating that his family was murdered twenty years ago. At the same time, Periya Thambi approaches Arjun with a complaint that jewellery has been stolen from his house.

A man claiming to be Vetrimaaran goes to his old house and creates a disturbance; he tries to rekindle an old friendship with Maathangi. At the same time, Arjun visits Priya’s house to investigate the jewellery theft, while Maasani experiences fleeting visions of a looming danger around him.

The Commissioner calls Vetrimaaran and tells him not to investigate the murder case that happened twenty years ago. At the same time, Arjun brings in the key makers who helped the thieves and questions them about the theft that took place at Priya’s house.

ACP Vetrimaaran is caught off guard by an unexpected emotional encounter. Meanwhile, ACP Arjun goes undercover as a thief, recreating the robbery at Periya Thambi’s house to uncover how it really happened.

A mysterious gang launches a deadly attack on the man claiming to be Vetrimaaran. Meanwhile, Arjun uncovers who is behind the unusual signature left at Periya Thambi’s house. Just as the mystery deepens, Vetrimaaran receives a chilling phone call from an unknown caller.

ACP Vetrimaaran tracks the source of a mysterious call to the imposter, uncovering a hidden truth about his younger siblings. Meanwhile, the man posing as Vetrimaaran becomes the target of a sudden shooting.

At Vetrimaaran’s house, Arjun angrily questions him about the shooting that took place at the police station. During the confrontation, Vetrimaaran reveals to Arjun and Maasani the truth about his real identity.

Vetrimaaran tracks down the woman who spoke to him and goes to her house.There, he questions her to find out what happened to his younger brother and sister on the night of the murder.Meanwhile, Maasani receives information that the theft is going to take place at the temple that day and informs Arjun.

To prevent the theft, Maasani and Arjun go to the temple pretending to be a married couple.There, Maasani suddenly feels dizzy and faints.At that moment, a woman who appears like a divine figure appears in her dream and tells her a few things.This leaves Maasani confused.

Vetrimaaran teams up with Maasani to question his sister’s kidnapper, while the Commissioner puts Arjun under pressure with a strict deadline to catch the thief.

Arjun sets a trap to catch the thief behind Periya Thambi’s robbery. Meanwhile, Vetrimaaran reopens the case of his sister’s 20-year-old disappearance and sends Arjun to a location he believes will reveal the truth.

Arjun rescues Narmada from fake Q Branch rowdies. But while chasing the thief, a shocking truth about him comes to light. Can Arjun face it?

Vetrimaaran learns the truth about who Narmada is, while she is admitted in the hospital, and breaks down emotionally in front of Maathangi. He then goes to Maasani’s house and agrees to go to the temple with her.

Maasani is shocked to learn who Vetrimaaran’s real sister is. Vetrimaaran sets out to rescue Narmada from Mahendran. Maathangi takes Arjun to the place where Vetrimaaran and Narmada are.

Vetrimaaran learns from Mahendran about the atrocities that happened to his family. At the same time, he is shocked to discover who his real sister is. Mahendran warns that even if he dies, the danger to Vetrimaaran and his sister will continue.