A Werewolf Boy (Korean: 늑대소년) is a 2012 South Korean fantasy romance film in which a beautiful teenage girl (Park Bo-young) is sent to a country house for her health, where she befriends and attempts to civilize a feral boy (Song Joong-ki) she discovers on the grounds—but the beast inside him is constantly waiting to burst out.Director Jo Sung-hee first wrote the script while studying at the Korean Academy of Film Arts and the script went through several rewrites before it was finalized in its current form. This is Jo's commercial debut; he previously directed the arthouse flick End of Animal and the short film Don't Step Out of the House.A Werewolf Boy had its world premiere in the "Contemporary World Cinema" section of the 2012 Toronto International Film Festival, then screened at the 17th Busan International Film Festival before its theatrical release on October 31, 2012. It quickly rose up the box office charts to become the most successful Korean melodrama of all time.