Rani Theni is a Tamil language movie starring Kamal Haasan because the protagonist. The movie's hero is playback singer Deepan Chakkaravarthi, son of Trichi Loganathan, who's an ace veteran cine playback singer of yesteryear. The movie's feminine leads are performed by Rajini nivedhita, Vanitha krishnachandran. Kamalhassan performs a comedy function with no reference to the primary story and interacts solely in a single scene with essential villain Sivachandran, who performs a task of Playboy and Casanova and his character is lastly killed by Heroine of the film.