Ratsasan

An aspiring filmmaker Arun (Vishnu) wants to make a movie on a serial killer, but becomes a cop due to family pressure. Arun's Uncle (Ramadoss), is a cop who worked with his father and guides him in the police department. Later, Arun gets involved in the case of a girl murdered in an extremely unpleasant manner and he finds out that the murder could be connected to a previous murder. He starts the investigation of the serial killer, where he finds very few clues of the serial killer. Whether he traces the killer or not is the rest of the movie.