
Like any jealous and insidious villain, she does anything within her power to come between their happiness, believing that she is the one to be with Sakthivel. Additionally, Sakthivel and Janaki must also tackle Parimalam, a woman who believed herself to be promised to Sakthivel for marriage at the appropriate time.

His views are supported by his younger brother, though their means of enforcing them greatly differ. The patriarch of the family, Annadurai (Sakthivel’s father) makes his displeasure known at the union, being against love marriage, seeing it as a threat to placing family first and keeping joint family values as the highest priority. Sakthivel’s sprawling family makes it an impossible dream to be happily married by interfering in the young couple’s life either directly or indirectly. While Sakthivel faces more moral dilemmas in the form of choosing between his family and the woman he loves. In the case of Janaki, her father wishes for her to become an IAS Officer and achieve a high status.

The couple faces many struggles in the form of social stigma and family expectations on the path towards achieving happiness of being together. The story speaks of the love shared between Janaki, a Brahmin girl and Sakthivel, a Devar boy. Idhu Oru Kadhal Kathai (IOKK) is the story of two lovers separated by the bias and prejudice of the society.
