The film opens to Akshay, having escaped from jail, being chased by the police when accidentally runs into the house of Sudha, a high school classmate of his. He hides in a closet when Inspector Cowry knocks the door. As he hides, he finds the corpse of her husband, Rithwik Kumar dumped there. The officer breaks the news to Sudha that the plane by which her husband Kumar traveled to Calcutta crashed, killing all the passengers. She appears shocked and breaks down in front of the officer. After he leaves, she reveals to Akshay that she killed her husband and confides in him. He joins her in disposing of the corpse in an abandoned well by her estate. The story goes into a flashback with Sudha narrating to Akshay the reason she killed him, shown in a series of broken sequences. Kumar, who suffers from schizophrenia is suspicious of his wife's fidelity and is unable to make love to her. He hallucinates scenes of her making love to her male friends, among who is Shashidhar, a friend who she meets often. Planning on catching them "red-handed", he plans on a fake trip to Calcutta, and returns to his house to find them talking, following the day of his departure. Mad with rage, he attacks Sudha intending to kill her, but from an accidental turn of events leading to his death, makes her believe that Shashidhar killed him. Shashidhar, in pursuit to report the matter at the police station, is hit by a police vehicle and finds himself admitted at a hospital. Cut to the present, Akshay disguising as Harish, a friend of Kumar, meets the mourners and appears to offer support to Sudha. Sudha receives phone calls from a person who demands a ransom from her husband's property that she inherits following his death, blackmailing her that he would otherwise report the matter of her killing and disposing of Kumar's corpse, to the police. The blackmailer directs her to come to a spot with an amount of 2 lakh. Pursued by the police, the blackmailer, who emerges to be Cowry, is arrested. Cowry reveals that he saw Sudha and Akshay throwing Kumar's corpse in the estate well and decided to blackmail Sudha. Following a further investigation at the crime scene, the investigating officer gets to know that the weapon used in the murder was a knife. Using this as evidence, he reveals the murderer, who then confesses to his crime. The murderer then narrates a story shown in a flashback sequence of his girlfriend Smitha being raped by Kumar and his friends, with Smitha committing suicide following the incident. A few days later, walking straight into Kumar's house intending to kill him to avenge Smitha's death, the murderer seizes the opportunity of the ensuing drama in the house between Kumar and Sudha and slits Kumar's throat unseen by Sudha. Cut to the present, he gets arrested along with Sudha and are being brought to jail by a police vehicle. The film ends with the murderer tackling the cops out and escaping.
