Ee Thanutha Veluppan Kalathu

Justice T. Vasudev is murdered in his house, and the killer stuffs coir into his mouth. The gruesome signature suggests a calculated killer who leaves a macabre message. This brutal opening sets the stage for a chain of linked murders.

Days after Vasudev's murder, Kuwait Mani dies in an intentional car accident with coir again found in his mouth. The pattern hints at a serial killer targeting Vasudev's circle rather than random victims. Investigators realize the crimes may be connected.

SP Haridas Damodaran IPS is assigned to lead the case and begins coordinating the inquiry. He orders his subordinate Joy to collect details of similar murder cases from history. The team begins shaping a timeline to identify a recurring pattern.

It is found that Rosario Fernandes, who had poisoned himself to death, also had coir in his mouth. The coir motif links Rosario to Vasudev and Mani, suggesting a shared method across victims. This discovery pushes the investigation toward a common backstory among the victims.

The investigation reveals all victims were college classmates. The team identifies a next target as businessman Philip Thennalackal George. The shared past among the victims hints at a revenge motive rooted in their college days.

Investigators suspect Christy, Rosario Fernandes's son, is connected to the killings. The theory ties the case to a lineage linked to the other victims. The crew intensifies scrutiny of Christy’s background.

Haridas meets Sreedevi's father, C. K. Gopala Menon, who notes Christy’s abnormal behavior and unknown whereabouts. His testimony provides a piece of the mental puzzle surrounding the suspect. Investigators push for more direct evidence about Christy.

A nurse named Leeladevi reveals Christy was present in mysterious circumstances when Sreedevi died in the hospital. The hospital records are probed to place him at the critical moment. The link strengthens the theory of Christy’s involvement, though not conclusive.

Philip reveals that Vasudev, Mani, himself, and Rosario longed for Sreedevi in college, but she did not reciprocate. When opportunity arose, they allegedly raped her. This dark secret provides motive and adds complexity to the case.

During a meeting with Warrier, the chief guest, Warrier locks someone in his house and calls Haridas for help after a confrontation with a mysterious stranger. Hari's encounter with the stranger raises questions about Warrier’s role in the killings. The scene showcases Warrier’s volatile state.

Christy is arrested on murder charges and returned to the mental asylum he had escaped from. He undergoes Narcosynthesis to uncover who led him astray. The interrogation reveals that Christy was misled by an unseen mastermind.

Christy escapes from the hospital, threatening Haridas’s job. Philip seeks police protection, but Haridas does not grant it. The investigators focus on watching Philip’s home to identify the true culprit.

Haridas and Joy realize Warrier is the perpetrator, linking the college-era assault to the current killings. The mastermind’s arrest ensues as the investigation narrows the suspect pool. The revelation explains the string of murders as a calculated act of revenge.

Christy is proven innocent and returned to a normal life, clearing him of the charges. Warrier is arrested for the serial killings, bringing the case to a close. The investigation closes with justice served and the truth about the mastermind revealed.