Kuttram 23

A woman named Jessica arrives at the St. Thomas Church in Villivakkam and confesses her sins to a priest. Her confession hints at hidden guilt and sets a ominous tone for what follows. The moment foreshadows trouble linked to the church visit.

During Jessica's visit, the priest is murdered and Jessica is abducted. The violent turn connects the confession to a dangerous crime cycle. Police begin tying Jessica’s disappearance to the earlier church tragedy.

In Chennai, ACP Vetri and his family celebrate Aravind and Abhinaya's wedding anniversary. Abhinaya is pregnant after fertility treatment, but her moodiness adds strain to the family dynamics. Vetri notices the underlying tensions around new life.

Vetri is put in charge of Jessica's abduction case and is assisted by Sub-Inspector Thirupathi. They visit Thendral, the preschool teacher who discovered the priest's corpse. The visit marks the start of a deeper investigation and potential personal stake.

Thendral's family moves into the apartment opposite Vetri's home, creating proximity that complicates the investigation and risks her personal life being exposed. The move tightens the link between the case and Vetri's neighborhood.

Thendral reveals seeing two vehicles—the victim's car and a black SUV—on the church day. She is attacked by thugs but Vetri intervenes and saves her. Following the incident, Vetri and Thendral begin dating and develop feelings for each other.

Jessica's body is recovered from a landfill, and it is revealed she was pregnant at the time of her death. Her husband, a TV channel director, claims they had only recently begun trying to conceive. The find intensifies the investigative pressure.

Vetri's investigation leads to a petrol bunk near the church where CCTV captures the black SUV. The footage strengthens the link between Jessica's abduction and the broader blackmail scheme. The trail begins to consolidate around a network.

Abhinaya is found dead by hanging, and her funeral reveals she had asked for ₹50 lakh shortly before her death. The financial demand hints at a threatening blackmail scheme connected to the pregnancies. Vetri begins to sense a larger conspiracy behind the family tragedies.

Thendral reveals Aravind's infertility, suggesting Abhinaya may have been unfaithful. Vetri discovers Abhinaya's postmortem shows traces of clomiphene, linking her case to other women inseminated through the hospital. The pattern points to a systemic manipulation of fertility procedures.

Vetri uncovers an unusual watermark numbered 23 on artificial insemination documents from Tulsi's hospital. This watermark connects a series of cases and leads him to Kousalya, a famous TV artist treated there. The clue tightens the web of corruption around fertility procedures.

Vetri's team taps Kousalya's calls and follows the money to a bank of blackmailers targeting women who underwent artificial insemination. They capture Gaurav, who explains the gang's scheme and identifies Jessica as their first victim. The operation expands beyond a single crime to a coordinated extortion ring.

Gaurav confesses that Jessica and a priest were killed to suppress the scheme, and reveals Abhinaya learned Tulsi had lied about using Aravind's sperm. The truth exposes donor manipulation and hospital deceit behind the tragedies. Vetri pieces together how the crimes were coordinated to protect the scheme.

John Matthew, a donor records manipulator at Tulsi's bank, is revealed to have orchestrated Abhinaya's insemination with his own sperm. He later abducts Thendral, forcing Vetri to pursue him in a tense confrontation. The personal stakes escalate as the case reaches its dangerous peak.

Vetri tracks John, saves Thendral, but John fights back and is ultimately defeated. In the aftermath, Vetri and Thendral discuss the misuse of medical advancements and the importance of adopting orphans. The case closes with a social message about ethical boundaries in reproductive technology.