Gu San-yeong's parents divorced early, and she lived with her mother who suffered from heart disease since she was a child. She works while going to school. Despite such a difficult life, her mother was cheated of her only savings due to phone scams. Although the swindler was found in the end, the defrauded money had already been transferred and squandered. On the same day, Gu San-yeong's father passed away. She was told by her mother that her father had passed away since she was a child, so she never contacted him. Her father is a professor of folklore, but she didn't expect that the first time she heard about her father was the bad news that he had committed suicide. At the same time, she also met her grandma, who gave her a relic of her father. Unexpectedly, it was this relic that caused her to be possessed by evil spirits!
As long as Gu San-yeong hates and wants them to die, they will be killed by the evil spirits one by one. The evil spirits use this to increase their power. Her father's good friend Yeom Hae-sang found her and told her the supernatural thing. At first, she didn't believe in the existence of ghosts and gods, but later through the mirror, she saw the shadow of the evil ghost possessing her body!
At the same time, several cases of murder by evil spirits also attracted the attention of detective Lee Hong-sae. He investigated Gu San-yeong based on a series of evidence including surveillance at the scene. Surprisingly, Gu San-yeong and detective Lee Hong-sae are high school classmates, and Lee Hong-sae has a crush on her for many years. I didn't expect to meet again because of these weird murders! How will they fight against the evil spirits next?
