Salem's history of rampant darkness and death isn't over yet, a fact Skye discovers upon purchasing a house in the infamous seaport. Her presence ignites events that began centuries ago during the witch trials and stimulates her formerly benign powers into a force beyond earthly bounds.

The discovery of a skeleton in a secret room in her house leads her to local police officer, Jerome Phips, whose mother disappeared 30 years earlier during a ritual in Skye's new home. Determined to uncover the truth of his mother's disappearance, Jerome's suspicion falls to Skye's mom, whose presence at the ritual is revealed.

Past and present collide as Skye struggles to fulfill a birth-task to protect an ancient knife, the same one Jerome believes played a role in his mother's disappearance, and an ancient evil returns to fulfill its own long-awaited task.