Raja Krishnamoorthy (Vikram) is the only son of Shanmugam (Nassar), and they live in Hong Kong. One day while travelling, their car meets with an accident, and both get admitted to the hospital. Dr. Cheenu (Santhana Bharathi) is their family doctor who diagnoses their blood and finds that Shanmugam is infected with multiple sclerosis. Cheenu, being a close friend of Shanmugam, tells Raja that Shanmugam’s life is expected to last for 60 days and requests Raja to keep his father happy, to which Raja agrees.

Raja insists that his father get back to India to meet his family. A small flashback is shown where Shanmugam married a girl by his choice against his family's wishes, which made him leave home with his wife. Shanmugam relocated to Hong Kong and set up a business there. Shanmugam’s wife died when Raja was born, and Shanmugam took care of Raja afterward. Raja knows that his father longs to meet his family again, so he decides to get the family united. Raja and Shanmugam leave to India to meet their family members. Everyone in the family is surprised upon seeing Shanmugam. They share some memories with him, except his father (Janagaraj), who is still angry at him. Raja, on the other, hand is skilled in magic tricks and mimicry and impresses everyone in the family with his skills.

Tamil (Sneha) is the daughter of Murthy who was a close friend of Shanmugam. Being orphaned, she lives with the family. She is responsible, loved by everyone in the family, and also takes care of everyone with love and affection. Raja decides to love Tamil after knowing that his father likes her. Raja proposes his love to Tamil, but she declines and says she will marry only the man as per their family’s wish. Raja creates a scene that Shanmugam's father should talk with Shanmugam, and if not, Raja will commit suicide. Shanmugam also gets united with his father.

Raja keeps on frequent touch with Cheenu to keep him updated with Shanmugam’s condition. One day, Raja gets a headache and becomes colorblind. Shanmugam’s mobile gets a call from Cheenu. Raja modulates as Shanmugam on the call and actually understands that the disease is actually for him and not his father. Raja continues speaking like his father to confirm the symptoms related to the disease but tries to behave normally. Raja understands that his father has requested Cheenu to lie to Raja, so that Raja will be happy while also making his father happy. Raja feels sad knowing that he has only a few more days to live but does not disclose this to his father and Cheenu. Cheenu calls Raja and informs about a research going on for multiple sclerosis in Europe and insists him to take Shanmugam there to get treated, which might provide a chance for revival. Raja understands that the therapy is intended for him.

Raja convinces his father to get back to Hong Kong, for which he agrees. Everyone in the family does not want Shanmugam and Raja to leave and insist them to stay with them. Raja says that there are some pending works and that they need to get back immediately. On the day of leaving, Tamil proposes her love to Raja, for which he does not reply. The movie ends with both Raja and Shanmugam leaving for treatment.