When a series of murders take place amidst the shooting of a movie,the CBI begin to suspect eccentric film director Rana to be a serial killer.

The film deals with the life of Raghupathi (Siddharth Venugopal), whose mother died in childbirth. He grows up with plenty of affection from his father (Kitty) and grows into a quiet, sensible, serious person. His father is the deputy-chief dam engineer in the Ambasamudiram dam, Tirunelveli, while Raghu is a mechanical engineer. He is frustrated because he is unemployed. One day, after returning after an interview in Pune, he meets Madhumitha (Tamannaah). She plays childish pranks and brings energy into his life. Madhu is the elder daughter of the dam’s new chief engineer and his arrogant wife, who want a very comfortable life for the family.