London, 1665.
James Willoughby was killed in action, caught in the furious volley of broadsides during the Battle of Lowestoft.
Hephzibah Willoughby, his wife, becomes deluded with such a profound grief that she loses her grip on reality. When she is forced to join the world of the living once more, she encounters Archibald Sheldon, a striking, hard-living man who quickly enchants the suffering widow.
Escaping her mind and the ghost of her husband, Hephzibah enters Archibald's world, and meets Charlotte St. Lawrence, the mysterious and dangerous madam of The Velvet Fang, a slipshod brothel to which there is more than meets the eye.
Running away from her grief won't work forever, though. As Hephzibah becomes more familiar with the terrifying heights and devastating lows of Archibald, Charlotte, and the girls, secrets and other ungodly things begin to unfold. She becomes ensnared in a trap of murder, sex, plots, and debauchery, all tied up in the annals of their collective pasts. Danger now lurks around every corner, snapping its foaming jaws, potentially carrying the spiritual and physical ruin of all involved.