In the late 17th century, on a remote island, executions and torture are rampant under the iron rule of Lord George Jeffreys, a merciless judge known for his harsh justice and supposedly upholding the king's law. The island, caught in a time of superstition and fear, becomes a breeding ground for Jeffreys' sadistic whims. His reign of terror is justified by his quest to purge the land of witches and heretics, leading to numerous innocent people facing brutal trials. Amidst this dark period, a series of mysterious deaths occurs, each victim found drained of blood, stirring rumors of witchcraft and monstrous deeds.

Amidst the terror and suspicion, a virtuous woman, Maria, finds herself unjustly accused of witchcraft after a series of unfortunate events. Her plight catches the attention of an unassuming visitor, Thomas Renfield, who begins to doubt the legitimacy of Jeffreys' trials and the true nature of the bloodthirsty killings. As Renfield delves deeper into the island's secrets and Maria's case, he discovers a horrifying connection between the nobility's corrupt practices and the sinister occurrences plaguing the island. Their fates intertwine as they navigate a perilous path to uncover the truth, challenging the very foundation of Jeffreys' tyranny and facing the dark forces that lie beneath the surface of their society.