A tour guide falls in love with her client, who reciprocates her love but won't marry her. Isabella (Sumalatha) waits patiently for Unnikrishnan (Balachandra Menon) every tourist season. They rekindle their love each time, but he always packs up and leaves afterwards. After pining for her for decades, an aged Unnikrishnan finally decides to be with her, but a surprise awaits him.