Kariyilakkattu Pole

Morning discovery of Harikrishnan's dead body at his house triggers a police investigation. Deputy Superintendent of Police Achuthankutty is assigned to lead the case, and he begins gathering initial clues and questioning witnesses.

A woman's shoe is found at the murder scene along with other fragments of evidence. Achuthankutty canvasses the area and begins piecing together how a woman could have carried out the crime.

A photograph of a woman is found inside Harikrishnan's diary, strengthening the theory that a female was involved. The discovery steers the investigation toward female suspects rather than an external male killer.

Based on the collected evidence, investigators identify Parvathi, now Bhagini Sevamayi, a renamed renunciant living in a Hindu ashram, as a principal suspect. She is arrested as she refuses to answer questions.

Shilpa hints that Harikrishnan was like an uncle and guide rather than a father figure. Achuthankutty pieces together the family ties, including that Bhagini is Shilpa's aunt, complicating the case.

Shilpa's mother explains Harikrishnan's past with her and Shilpa, as well as with Parvathi, showing a pattern of flirtation and entanglement. This backstory provides context for the present suspicion and motives.

As lecturers in their youth, Harikrishnan had a flirtatious relationship with Parvathi. She tries to warn him about his intentions, but he denies wrongdoing and continues the relationship.

Harikrishnan rapes Shilpa's mother and abandons her; Parvathi's heartbreak drives her away from him and leads to her eventual religious life as Bhagini Sevamayi.

Shilpa's mother reveals that Shilpa is Harikrishnan's illegitimate child. The revelation deepens the emotional stakes and may influence motives surrounding the director's death.

Shilpa's mother confesses she had planned to kill Harikrishnan, but she arrives at his house and discovers that he is already dead. This moment intensifies the confusion about the true culprit.

Achuthankutty's brother Anil admits to having murdered Harikrishnan out of jealousy, insisting it was an accident. His confession adds a personal dimension to the murder and shifts the investigation's focus.

Anil commits suicide, leaving behind a suicide note that Achuthankutty burns. With the true culprit's identity still unclear, the detective laments that he cannot definitively pin the crime on anyone.