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.