A corpse on the altar. A silent witness. A vow that can't be broken.

It's 2 A.M. in a wealthy Cleveland suburb when a young woman is found murdered-ritually slain and left on the altar at St. Andrew's Church. Reverend Howard Jamison is discovered covered in blood. A Satanic Bible lies open on his desk. And he isn't talking.

Attorney Hunter St. James, already battling his own demons, is forced onto the case. His once-promising career is collapsing, his socialite girlfriend is pregnant, and now he's saddled with a pro-bono defense he has no chance of winning. Raised by an infamous father, Hunter has spent a lifetime outrunning disgrace. But now he's running straight into it.

As the trial spirals toward a deadly Halloween climax, Hunter is pulled into the world of secret societies, ancient vows, and a war between good and evil far deeper than he imagined. His atheist beliefs are no match for the forces he's about to confront.

Meanwhile, psychologist Faith McGuire is desperate for a second chance at life and love. Recently divorced and raising a special-needs son, she's thrown into the storm just as everything she holds dear is threatened.