Set in 1935 Gyeongseong, the story follows struggling artist Yun Yi-ho, who is commissioned by the reclusive elderly Madam Song Jeong-hwa to create a portrait. In a rare moment, she allows him to see her, revealing a young woman before him. However, she requests that he paint an elderly version of herself. Hidden among the previous artist's paint tubes is a troubling letter. Yun Yi-ho discovers that no artist has left Madam Song Jeong-hwa's home alive or in a sound state of mind. The mystery deepens as he contemplates what she is concealing and the potential consequences of completing the portrait.
