Kolamavu Kokila 2018

The film opens with the killing of a police officer by a cocaine dealer, Hareesh Peradi as Bhai, and his henchmen. Nayanthara plays Kokila, who struggles to find a steady job to take care of her parents and sister. She stumbles into the cocaine-smuggling operation run by Mohan, and when her mother is diagnosed with lung cancer, Kokila is forced to work for Mohan. Her sharp wit and ruthless pragmatism quickly earn her a feared reputation in the business, turning a desperate situation into a dangerous climb up the criminal ladder.

A fresh crackdown on drugs arrives in the form of Inspector Guru, played by Saravanan as Inspector Guru, a no-nonsense cop who makes life difficult for drug dealers. Kokila comes under his scrutiny, and she is almost caught a couple of times, but she manages to slip away each time. She convinces Mohan to kill two of his henchmen suspected of leaking information and then contemplates quitting the operation. Mohan seems to agree but makes a counter move to kill her; in a brutal turn, Kokila murders Mohan and his men and tries to flee with her family. She is intercepted by Bobi, whom she had joined with earlier, Arun Alexander as Bobi, who had recruited her and now insists she deliver one last payload.

He demands that she deliver one last shipment—300 kilos—to Rajendran as Alphonse. Kokila is forced to accept and calls on her family for support. Shekhar and Lakshman Kumar join them unaware of the full extent of their smuggling operation—Yogi Babu as Shekhar and Anbu Thasan as Lakshman Kumar—bringing a mix of loyalty and risk to the table. They manage to deliver the load, but Kokila reveals a cunning ruse: most of the cargo has been swapped with salt. She then engineers a double-cross, tricking Bobi into betraying Bhai and framing him for the swindle. Bobi is killed, and the shipment continues under a veil of danger and deception.

Midway, the police close in again, this time behind Alphonse’s disguised men. Kokila is captured, but with the help of her family, she resists torture and fights back. Guru tracks her down and arrests her, leading to a tense standoff that pushes Kokila to strike a deal: she will help bring Bhai to justice in exchange for the immunity of her family. The plan succeeds—Bhai is shot dead by Guru, and Kokila and her relatives escape punishment thanks to Guru’s reluctant cooperation, a result of his wife being placed on-site during the drug bust by design.

In the end, the family channels their energy into something legitimate, launching a Kolam powder business as a fresh start, under the name Kolamaavu Kokila.