BJ Yagwang and PD Park host a horror-themed live stream on AfreecaTV, constantly seeking more thrilling and terrifying content for their show. One day, they come across a video showing a high school girl vanishing. Just before her disappearance, the girl is seen summoning a ghost and playing hide-and-seek by herself. During a live broadcast on AfreecaTV, BJ Yagwang visits the deserted building where the girl was last seen.