In this wild South Korean action thriller, gangster boss Jang Dong-soo (Ma Dong-seok from Train to Busan) rules over the gambling racket in his home town with an iron fist. When he gets stabbed one night it could very easily be seen as an ‘occupational hazard’. However, in reality he was attacked by a serial killer – and Jang is the first victim to survive. His fiercest rival, policeman Jung, manages to convince him to form an alliance: together they intend to find this killer – and whoever catches the devil first can do as he pleases.