Ratsasan is a 2018 Tamil Action drama written and directed by Ram Kumar. Director was inspired to write a story about a psycho killer after reading the news about the Russian serial killer Alexander Spesivtsev. Due to unfortunate circumstances an aspiring film director, takes up the job of a Sub Inspector after his father passes away. When he faces issues in adjusting to the lifestyle of a police officer, a series of mysterious murders of school girls happen in the city and he attempts to track down the killer. The Movie stars Suzane George, Ram, Amala Paul, Kaali, and Vishnu Vishal. Initially, Jai was signed as the main lead and C.V Kumar was supposed to produce but both of them dropped out. The working title of the film was Cinderella and then Minmini, the first title was claimed by another film’s producer and the second title was too light-hearted so he amicably convinced C.V. Kumar who was supposed to be the producer earlier, and got the title Ratsasan. It was produced by G. Dilli Babu and R. Sridhar under Axess Film Factory. The cinematography was handled by P.V. Sankar and edited by San Lokesh. Soundtrack and the background score was composed by Ghibran. Trident Arts and Skylark Entertainment acquired the distribution rights. It was released on 5th October 2018 and received positive reviews from the critics and audience. The movie was made on a budget of ₹10 crore and it collected ₹20 crore at the box office. The movie occupies a screen time of 145 minutes.