It's the end of the nineteenth century in San Francisco's Chinatown, and ghost hunters from the Maoshan traditions of Daoism keep malevolent spiritual forces at bay. Li-lin, the daughter of a renowned Daoshi exorcist, is a young widow burdened with yin eyes-the unique ability to see the spirit world. Her spiritual visions and the death of her husband bring shame to Li-lin and her father-and shame is not something this immigrant family can afford.
When a sorcerer cripples her father, terrible plans are set in motion, and only Li-lin can stop them. To aid her are her martial arts and a peachwood sword, her burning paper talismans, and a wisecracking spirit in the form of a human eyeball tucked away in her pocket. Navigating the dangerous alleys and backrooms of a male-dominated Chinatown, Li-lin must confront evil spirits, gangsters, and soulstealers before the sorcerer's ritual summons an ancient evil that could burn Chinatown to the ground.