Evil Spirit.

Mi-ryeong marries Ji-kwang and takes him to live at her mansion. He soon seems to fall ill and he requests that his friend, Yeo-ok be hired on to nurse him. However, Yeo-ok and Ji-kwang are really lovers and together they manage to fake Ji-kwang's death. They next torment Mi-ryeong with visions of his 'ghost'. Mi-ryeong dies of fright and Yeo-ok and Ji-kwang marry--but their happiness is short-lived as their nights are interupted by the vengeful spirit of Mi-ryeong.