Vanamagan

Kavya's parents die in an accident during her childhood, leaving Kavya Industries in her name. The business is then run by her father's friend Rajasekhar, who is keen on Kavya's wealth. This creates an early dynamic of wealth and influence that drives later conflicts.

Rajasekhar asks Kavya to sign asset documents, signaling his control over Kavya Industries. He hints that her wealth is more important to him than her well-being. Kavya senses his manipulation but has limited power to resist.

Kavya and her friends plan to spend New Year in Bora Bora, but their passports are on hold. To salvage the plan, Rajasekhar suggests an alternate trip to the Andaman Islands. This shift marks the start of Kavya's dangerous journey.

In Andaman, Kavya and her friends behave recklessly and draw police attention. They escape the chase, setting a reckless tone for the events to come. Their conduct foreshadows the trouble Kavya will face.

The group unintentionally hits a tribal person with their car. With no hospital in Andaman willing to treat him, Kavya decides to transport him to Chennai for medical care. Her decision launches a web of deception around the man's identity.

Kavya and friends disguise the tribal man as a local named K. Vaasi and admit him to a Chennai hospital. The ruse creates confusion about who Vaasi truly is. The events set Vaasi on a perilous path intertwined with Kavya.

Vaasi is sedated and dropped at Kavya's home after treatment. Kavya and her servants begin training him to act like a normal human being. The process places Kavya at the center of a complex moral maze as her life becomes entangled with a stranger.

On Kavya's birthday, Rajasekhar touts a 2,000-crore German project. Vicky tells Kavya he cannot stand Vaasi and reveals he has disclosed their relationship to his father. A tense confrontation erupts when Vaasi interrupts and attacks Vicky, prompting police intervention.

In the hospital, Vicky is treated for a serious neck injury and told he will need lifelong support. The German project documents are due to be signed and dispatched, tying Kavya to powerful corporate interests. The mounting pressures deepen Kavya's dilemma.

Andaman police decide to take Vaasi to the forest and finish him off. Kavya and Pandian arrive to intervene, but Vaasi breaks free and kills police officers. The trio flees into the forest as they are pursued by authorities, and Shanmugam confirms Vaasi's survival when Vaasi meets him.

Vaasi is revealed to be named Jara by Shanmugam. He meets his people and saves a young girl from a tiger, though he injures the tiger in the process. He stitches the girl's wound and takes her back to his tribe, establishing a protector role.

The German company pressures the authorities to evacuate the tribe, but they refuse relocation. Shanmugam is shaken when he hears his daughter's voice—the rescued girl turns out to be his daughter, linking Vaasi to a personal stake in the conflict.

A brutal night battle erupts between the tribe and the police, leaving many dead and Vaasi knocked out. The film then returns to the start of the story, with Shanmugam warning Vaasi about the police, signaling a looping narrative structure.

Kavya and friends again encounter Vaasi after accidentally hitting him with their car while fleeing police. Rajasekhar returns from the US and arrives in Andaman, demanding Kavya return within 24 hours. The tense standoff sets up the climactic confrontation.

Suryaprakash presents Project Zero with a plan for forest containment, and a spy camera reveals Kavya and friends’ movements. In the climax, Rajasekhar abducts Kavya and shoots Vaasi, but Vaasi fights back, and Kavya begs for mercy. Rajasekhar spares Vaasi and leaves, while Kavya rejects him and chooses her own path.