Karthik is a photographer by profession together with his another two friends Arun & Viki. One fine day, he came across Oviya who is after her break-up. Karthik falling in love with her. When their love started to develop, Karthik noticed some strange behavior with Oviya. The story develops with the worsening of Oviya's strange behavior. At another track Karthik's friend Viki started to like Oviya's sister Madhavi, who is a divorced. What happens to Viki's love plot is another sub plot in the movie. At one point, Kathik get to know the reason for Oviya's strange behavior. What happens to Oviya, and what happens in the end is the journey of Neeyum Naanum.