The Hwaseong serial murders are a series of unsolved serial murders that occurred in the South Korean city of Hwaseong between September 15, 1986 and April 3, 1991. Ten women were found bound, raped, and murdered. The murders are considered to be the most infamous in the modern history of South Korea and has been compared to the Zodiac Killer. The Korean film Memories of Murder (2003) and television series Gap-dong (2014) and Signal (2016) are based on these murders.