Song Zhiyu, a makeup artist at a funeral home, was born with the ability to see the last obsessional visions of the deceased. A female corpse's arm points in the direction of her missing husband, and a mysterious symbol appears repeatedly in her obsession. Song Zhiyu was surprised to find during the investigation that the symbol was exactly the same as her father's relics that disappeared five years ago. As the truth approaches, she falls into a huge conspiracy that spans the two realms of Yin and Yang - someone is using the obsession of the dead to create the "Gate to the Other Side", and her father is actually the first gatekeeper of this gate.
