Jith is in a tough spot. He is desperate to get close to Sonam who is refusing to be impressed by any of his romantic gestures. Additionally the other mystery girl is playing her own tricks, very successfully, to ensure Sonam and he cannot get together.Meanwhile, Rathinam, Sonam's over-possessive cousin, who has wanted Sonam for himself, hires an out-of-work detective Maruvesha Marikose, to keep an eye on Jith and to protect Sonam even against her own wishes.With none of his schemes working right, Jith decides to change tactics and befriends the other girl who is called Monalisa and is a ghost.