Kooman

Giri Shankar is introduced as a young, sharp CPO who excels at spotting clues. Pillai and Sukumaran Nair praise his detective abilities, while a few constables grow jealous of his talent. The early scenes establish both his promise and the friction it creates within the village station.

Pillai scolds Giri for trying to file a drug case on a young man who challenges his authority. He then retires from duty, and a new CI named Harilal takes charge. The moment sours Giri’s standing and seeds future tension between them.

Harilal, now the CI, insults Giri for no reason, fueling resentment. After an embarrassing confrontation at a Kabbadi match, Harilal vows to take revenge. The pledge marks Harilal's shift from subordinate to adversary.

Harilal seeks the help of an old thief named Maniyan to learn how to rob people. Maniyan tutors him on exploiting neighbors and avoiding detection. This alliance signals Harilal's descent into criminal tactics and a personal vendetta against Giri.

Harilal and two constables fail to solve a string of robberies and are suspended from duty. The investigation falters under pressure, eroding trust in the new leadership. Giri witnesses the fallout and its impact on him personally and professionally.

Giri's kleptomania worsens and he is caught attempting to rob Ramakrishna. He flees to Tamil Nadu to avoid confrontation or punishment. The incident deepens his personal crisis and foreshadows his deeper involvement with the killer's pattern.

The next day, Ramakrishna is found dead, hanging from a tree. Giri recalls a similar hanging from earlier in the film, realizing there is a serial killer at work. This discovery pivots the story from theft to murder investigation and personal guilt.

Overwhelmed by guilt, Giri confesses to Pillai. Pillai, though saddened, tries to help him through counseling with a psychiatrist. The exchange shows a human side of the police world and frames the mental-health arc as a path to redemption.

Giri learns from Senthil Kumar that victims who die in similar ways had mysterious letters, suggesting a connected pattern. This clue shifts the focus from random acts to a coordinated pattern. The letters become a crucial thread guiding the investigation.

Giri meets Acharyan, who explains that one of his former students was expelled for reading an illegal book and dabbling in black magic. Acharyan's tale reveals a motive rooted in forbidden knowledge and occult influence. The dialogue deepens the mythic layer of the killer's methods.

Giri identifies Karuppu Durai as the mastermind behind the suicides and the use of black magic to manipulate victims. The revelation shifts the investigation from random acts to a calculated conspiracy. Durai's control over the victims becomes the central conflict.

Giri locates the abandoned temple where Durai performs dark rites. He confronts Durai, but Lakshmi ambushes him and is hypnotized. Durai and Lakshmi try to hang Giri, but he escapes and defeats them, turning the tables in the climactic struggle.

Pillai and Sukumaran arrive to inform Giri that he has been selected to join the Special Task Force. They also reveal that a robbery happened last night, and Pillai looks at Giri as if to remind him of his ongoing compulsion to rob homes. The moment sets up a future path where duty battles with personal demons.