A city drowning in fear. A killer obsessed with being understood. And a detective who unknowingly became the center of his attention. As brutal murders spread across Seoul, Detective Kim Taehyung realizes the killer isn't just leaving behind bodies- he's leaving messages meant only for him. Because some monsters don't want escape. They want recognition. "You killed them just to get my attention?" A soft laugh. "No, detective." "Then why?" "Because you looked bored." "Do you even feel guilty?" "For what?" "The murders." "...Do you?" "If I catch you, I'll put a bullet through your head." "Then hurry up." -or- "You're insane." "And yet you keep answering my calls." STORY TROPES ☆ Psychological Thriller Cat & Mouse Chase Obsessive Love Slow Burn Heavy Angst Crime & Murder Mystery Morally Grey Characters Toxic Attachment Mind Games