A young man's relationship with his career, fiancee and brother is brought under stress by the birth of an unexpected sister. The film deals with the relationship between siblings Unnikrishnan and Meenakshi who have an almost 30 year age difference between them.

Krishnan, who has been living away from his family and friends in Mumbai, gets a call from his friend Ganga in Kerala, out of the blue. He senses danger, and leaves for Kammattipadam, where both of them grew up.