A streamer (a social media live content creator) named Woo Sang (Kang Ha-neul) introduces himself as “a crime hunter capable of finding demons hidden in the world.” He suddenly finds himself caught in an unexpected situation involving the abduction of a fellow streamer named Matilda (Ha Seo-yoon) while they are livestreaming together. Woo Sang has frequently covered criminal cases and exposed them through his WAGer channel. He soon realizes that the serial killer KJ5385 (Ha Hyun-soo) appears to be watching his livestream.

Director Cho Jang Ho praised Kang Ha Neul’s transformation into Woo Sang for the film. Kang Ha Neul himself had high expectations when he first received the screenplay, rather than focusing on the challenges of portraying the character. He also contributed various ideas to make Woo Sang more compelling, including changes to his appearance, hairstyle, and the tattoo on his neck. Due to its proportionate scenes of violence, the Indonesian Film Censorship Institution (LSF) has classified the film for audiences aged 17 and above. Be discerning in selecting content suitable for your age. (air)