Future archaeologist Lin Youxu accidentally triggered a ghost contract while excavating an ancient tomb and was forced to become a temporary soul attractor in the underworld. She cooperated with the mysterious underworld judge Situ Jin to solve the thousand-year-old revenge incident of the undead, but during the investigation, she discovered that the owner of the tomb was actually her lover in the previous life, and the current deputy captain of the archaeological team was actually a defector who colluded with the demons.