YouTube horror storyteller Da-kyung, recovering from a loss of subscribers, collaborates with the agency producer Woo-jin to find a powerful real-life horror story. Their quest leads them to Gwangrim Station, where the stationmaster reveals a series of eerie events. Her videos started to gain popularity, prompting her to become obsessed with the station. The stationmaster suggests a daring move for Da-kyung to board the ghost train herself.