Jabaekui Daega plot
An Yoon-Soo works as an art teacher. She has quiet, ordinary days, but her life suddenly changes. Her husband is murdered, and she is accused of killing him. She struggles to clear herself of the murder. While in prison, she is approached by a mysterious woman named Mo Eun. Mo Eun is called a witch by the other prisoners because she can see through others and know what they are thinking and feeling. An Yoon-Soo and Mo Eun both have secrets, and they make a dangerous deal.