Kalabha Kadhalan

Akhilan, an IT manager, marries Anbarasi and moves to a new house in Chennai. They begin a happy life, though their marriage isn't based on love. As they settle in, they start building a routine together in their new city.

Anbarasi's family visits and leaves her stepsister Kanmani to stay with them while she pursues post-graduate studies. Kanmani settles into the household and begins to sense Akhilan's attention. She starts secretly dreaming of a romance with him whenever Anbarasi isn't around.

Kanmani develops romantic feelings for Akhilan, despite him being her brother-in-law. She frequently imagines being with him, especially when Anbarasi is away. Akhilan, torn between loyalty and desire, tries to dodge her advances to protect his wife and marriage.

After almost a year of avoiding Kanmani, Akhilan consults a psychiatrist for help. The psychiatrist suggests a practical solution: marry Kanmani off to someone else to remove the source of tension. The idea is to prevent Kanmani from disrupting Akhilan and Anbarasi's married life.

Akhilan quietly travels to Kanmani's village and asks Kanmani's cousin to pursue her hand in marriage. He hopes that a new engagement will resolve the problem without direct confrontation. The move is kept secret from Anbarasi and the rest of the family.

Kanmani's cousin begins courting her, but she rejects him repeatedly. The pursuit drags on for about a month, increasing the family's anxiety. Kanmani remains unmoved by the arranged match and resists the cousin's advances.

About a month later, Kanmani's cousin abducts her, rapes her, and leaves her at Akhilan's apartment. The shocking act unsettles the entire family, with Akhilan especially overwhelmed by guilt. The incident becomes the catalyst for the tragic sequence that follows.

Akhilan privately confesses to Kanmani about his role in the scheme and clarifies that the rape plan was not his advice. He expresses remorse for the harm caused to Kanmani and the marriage. Kanmani confronts him, reeling from the revelation and the betrayal.

To avoid the social stigma of rape, the family pressures Kanmani to marry her cousin. The marriage occurs, and Kanmani's family leaves for Thirunelveli. Akhilan's involvement is acknowledged but not rectified in the eyes of the community; the damage remains.

The morning after the wedding, Kanmani commits suicide. The tragedy deeply affects Anbarasi, Akhilan, and the rest of the family. The events leave a lingering sense of guilt and unresolved consequences.

Akhilan, Anbarasi, and their child return to Kanmani's village to face the aftermath. Anbarasi's aunt strikes Kanmani's husband, blaming him for the tragedy. Standing beside the husband, Akhilan is overwhelmed by guilt for having set the chain of events in motion.

The film ends with the line 'Good love, bad love, what is there in love?' prompting viewers to reflect on the complexities of love, duty, and consequences. The final shot leaves the moral questions open rather than offering easy answers.