Crazy Gopalan

Kattila Gopalan is known as a mysterious and notorious thief in the village of Oonjaalaadi. Despite his reputation, no one has seen him, and his true identity remains a secret. People fear him because he can steal anything without getting caught or being seen.

Harichandran, a carpenter, unexpectedly sees Gopalan for the first time, revealing Gopalan's existence to at least one other person. This event forces Gopalan to flee the village to avoid being identified and caught.

In the city, Gopalan meets Lakshmanan, another thief with a sick mother. They decide to team up and start stealing to support Lakshmanan's family and to buy back Lakshmanan's lost ancestral house.

Babu John, a wealthy banker and the chairman of Investors Bank, steals 10 crore rupees from his bank and falsely blames Gopalan and Lakshmanan for the crime. Diana, a girl connected to Babu John, enters their lives, and her past reveals her motives against him.

Babu John kills Lakshmanan during the investigation, leading to rumors that Gopalan murdered Lakshmanan and stole the money. Gopalan manages to escape, leaving behind a trail of suspicion.

Vasu discovers Gopalan's body on the seashore, believing he might find some reward if he takes Gopalan's body home. However, he learns that Gopalan was penniless, prompting Gopalan to team up with Vasu to seek revenge and justice.

Gopalan and Diana plan to kill Babu John after discovering his crimes related to their pasts, including the murder of her family and her adoptive brother. Gopalan finances a bank heist with Vasu to stage a blow to Babu John.

The new police commissioner, Vinod Abraham, tries to solve the case of Gopalan. Mistaken identities lead the police to arrest Harichandran, who then reveals the truth about Gopalan’s identity, helping narrow down his location.

Gopalan escapes police pursuit with Diana's help by pretending to be caught. They plan to find hidden gold bars and black money with Babu John and Chacko. Diana informs Gopalan about Babu John's plans to ruin Chacko's family to manipulate the situation.

Gopalan confronts Babu John with the help of Diana and Vasu at a secret location. Despite brutal beating, Gopalan recalls Babu John’s past crimes, fights back, and kills Babu John, avenging Lakshmanan's murder. He then contacts police to cover his escape.

Gopalan, Diana, and Vasu return to Oonjaalaadi village. There, Gopalan is surprised to find that Kattila Gopalan appears to be Harichandran, the man he thought he knew, revealing a twist about his true identity and past.