ung Ki Hoon searches for strange supernatural phenomena as an archaeologist, but an unexpected case causes his life to change. He now publishes the occult magazine Monthly Strange Story and runs the YouTube channel Monthly Strange Story. Because of his ex-wife, Lee Soo Jin, he goes to Jinyang County to research "Gwibul" (a Buddhist statue possessed by an evil spirit). There, he faces an incredibly bizarre & fearful phenomenon.

Lee Soo Jin used to decipher letters and symbols as an archaeologist. She was excellent at her work. But, her only child dies, and she then goes to Jinyang County. There, Lee Soo Jin experiences mysterious phenomena, which leads her to search for answers.