Falling in love is easy, mourning is hard. When Chang Yoona marries the notorious CEO of the largest bank corporation in South Korea, she thinks everything is finally falling into place. That is until she is diagnosed with polycystic ovary syndrome. Not being able to give her husband a child when he provides her everything strikes her to the core. Despite her hatred for her in-laws, she owes it to her husband to accept the trip to Gijang-Gun. She never thought that would be the last time she would ever see him. Now five years later any resemblance of her husband is drowned out by the silence of the Hanok village that Yoona seals herself in, only drifting to the Namdaemun Market often enough to keep her cupboards stocked. She would have remained in the silent village if she didn't inspect a noise across the courtyard one night, leaving her dinner to burn in the kitchen. The last of her husband's belongings would've turned to ash without the help of the Haechi-an ancient Korean myth she never thought she would witness in her lifetime. The guardian is known for his righteousness with distinguishing between good and evil, but she didn't realize he sought out punishment until she discovers the guardian possesses more knowledge about her husband's death than the authorities. Seoul is known for its pristine mask, but underneath something lurks, and in the night it thrives. Everything begins to unravel for Yoona as the investigation of her husband's death leads her into the depths of manipulation until she becomes the puppet to her husband's killer. Tempted with the taste of blood, the vengeful widow begins down a treacherous path that even the guardians above won't be able to forgive her for.