Demon catcher Ye Qingshuang, to repay a kindness, disguises herself as a bride and marries into the Lin Manor to bring good luck, but is actually tracking the source of the demonic aura entrenched in the manor. Her sickly husband is hanging by a thread, and phantom shadows flutter in the dark depths of the grand residence; she deploys talismans to secure the house and proceeds step by step, only to find that the "demon" she must catch is shaking her conviction to slay demons and eliminate devils bit by bit. Beneath the demonic aura lies a three-hundred-year-old old debt; within human hearts are uncrossable obsessions and deep affections. When the demon catcher begins to feel heartache for her prey, this game long ago lost the distinction of who has trapped whom.