I'm Hana, a recent university graduate starting my first job at a call center. But my life is far from ordinary. I live with my stepfather, a celebrated detective who has never failed to crack a case. The irony? This time, he's hunting the killer-and that killer is me. With a series of mysterious deaths linked to my past, I find myself tangled in a dangerous game of cat and mouse. As I navigate the call center's mundane routine, I'm also orchestrating my next move to cover my tracks. My stepfather is brilliant, but I know his methods. I must outsmart him while concealing my guilt. As the investigation unfolds, dark secrets surface, revealing the complexity of my actions and motivations. Can I stay one step ahead of the man who raised me, or will I be caught in my own web of deception?