It’s Mi-sun’s first day as a railroad attendant. Her first assignment is an overnight trip through Korea and she’s understandably nervous. But it’s not the motley group of passengers that has her feeling uneasy. It’s the train itself. It turns out that some of the cars on the train were involved in a devastating crash 16 years earlier in which 100 people died. Rumor has it those cars are haunted and it’s not long before Mi-sun starts to experience eerie visions.