: Kang Kyung-ho (Kim Sung-kyu), the serial killer whose unpredictable and brutal methods of smashing cars and stabbing victims terrify the city.
: Jang Dong-su (Ma Dong-seok), a powerful crime boss who survives a random attack by a serial killer. Determined to restore his reputation and exact revenge, he decides to hunt the killer himself. the gangster the cop devil tamilyogi
"You," the demon whispered to Arivazhagan. "My first sinner." : Kang Kyung-ho (Kim Sung-kyu), the serial killer