Cha Young Jin is a detective. She lost her friend 19 years ago to a serial killer and still carries guilt and trauma over the death of her friend. The serial killer case then begins again after 19 years. Cha Young Jin chases after the killer.
Complete episode guide for Nobody Knows with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.