A boy who can see ghosts moves to a small town, where he befriends a female ghost. The two work together to investigate a masked ghost who is murdering students one by one.
A young girl is kidnapped by a serial killer. The serial killer uses manholes to kidnap and kill his victims. The young girl's older sister tries to save her before it's too late.
Returning from eight years abroad at work and in prison, Jeong-il struggles to reconnect with his wife and their young daughter, Ye-sol, whom he barely knows.
Min-jae is a highschool teacher during the day, but at dusk, he goes out on the streets and join with youth who are alienated from school and home. Due to an incident, Min-jae is put to the test again to protect his students ─ Ji-geun and classmates.
A young man works at the bond collection call center. He is polite, pure and sincere at a glance. On the other hand, the director of the center is not called to the head office, so she is antsy every day. And she has a daughter who is having a hard time preparing for a job.
