This multi-layered family drama delves into deep social concepts surrounding the need for fidelity and monogamy in marriage. Sukumaran and Sudhakaran are two brothers who find themselves deeply in love with their cousin Radha. She marries Sukumaran and although Sudhakaran is heartbroken, he accepts the situation and leaves the country. While Radha and Sukumaran share marital bliss for a short period, he becomes completely paralysed after a tragic accident.
Radha is forced to become a nurse and caregiver at a young age. Saddened and burdened by the situation, she becomes depressed and heartbroken, even though she tries her best to remain true to her husband.
At this critical juncture, Sudhakaran returns home, after completing his MBA from the USA, looking dashing, youthful, fit, healthy, active and successful. He also takes on the role of a general manager in a prestigious firm. While Radha resists the temptation for rest long as she is able to, over a period of time, she succumbs to Sudhakaran's charms and the both of them begin an extramarital affair. How will Sukumaran react when he comes to know of the affair? What extreme measure will the family employ as a solution to this situation?