After following in her deceased father’s footsteps and becoming a police officer, a young woman experiences strange phenomena while attempting to capture a criminal that escaped from her father’s custody many years before.

The story opens in the British India reign, where a British man and porter are trying to catch a ferry. On the way, however, one of the suitcases being carried by the porter falls and opens, revealing many diamonds. The porter steals some of the diamonds and sends the gentleman on his way. He hides these diamonds in a trunk, which he buries near a temple in the Gulaebaghavali village. The story then shifts to 2018, where Badri (Prabhu Deva) and his boss Nambi (Mansoor Ali Khan) perform petty thefts. While at a pub, Badri spots Viji (Hansika Motwani) and falls for her. Soon, Badri unknowingly accepts to steal a priceless statue from the temple at Gulaebagavali and runs into Viji. The duo escapes from the villagers. With some help from Munish (Ramdoss) and Maasha (Revathi), they steal the trunk, which reveals a skeleton. After a lot of confusion, the trunk is delivered, where it is revealed that the diamonds are stored in the skeleton. The police comes to the spot and finds that the diamonds were very valuable. After they escape from the police, it is revealed that during the fight, a hand of the skeleton fell in Maasha’s car. On finding this out and how Maasha tried to deceive the other three, the trio chases her. A parallel storyline involves Mayilvaganam (Sathyan) and a don Annachi (Rajendran), which culminates in the climax.

Two smart con-women and a bunch of quirky gangsters are pitted against each other while in pursuit of a mythical vessel fabled for its powers.

Four criminals sent to a village to recover buried treasure by a don decide to cheat him and share the treasure between themselves.

Kaathadi is directed by Kalyan, who got rave reviews and critical acclaim for his recent offering Kadha Solla Porom. It’s an action comedy about the kidnapping of a child and how police officer saves the kid forms the story.