A centuries-old spirit of vengeance, born from the brutal suffering of enslaved Africans on a Grenadian plantation, awakens in the modern day. Sadia Baptiste, a historian, inherits her grandfather's estate and uncovers a horrific truth: a ledger detailing atrocities and an ancient slave collar that serves as a key to controlling the entity known as the Jab—a shadowy force with lips of blood that drinks the life of the wicked.

As the Jab begins its bloody harvest, Sadia is forced into a terrifying role: its keeper and guide. To survive, she must use the ledger to direct its rage, navigating a moral abyss where the line between justice and damnation blurs. But the Jab is a hunger that cannot be tamed, and when it deviates from her control, the consequences are catastrophic, threatening to consume both the world and Sadia's very soul.

This is a chilling tale of historical trauma, inherited guilt, and the monstrous price of vengeance.