A former detective with a personal stake in solving the case, Doo-shik is driven by a desire for justice and a need to understand the mind of a serial killer. Kim Yoon-seok brings depth and nuance to the character, making Doo-shik both relatable and admirable.
Through the characters of Young-soo and Jae-young, the movie showcases the complexities of human nature. Jae-young's character, in particular, is a fascinating study of a serial killer's psyche. The film raises questions about the nature of evil and the factors that contribute to the making of a serial killer. the chaser 2008 english subtitles